different between speed vs rush

English

Pronunciation

• IPA^(key): /spi?d/
• Rhymes: -i?d

Etymology 1

From Middle English spede (“prosperity, good luck, quickness, success”), from Old English sp?d (“luck, prosperity, success”), from Proto-West Germanic *sp?di (“prosperity, success”), from Proto-West Germanic *sp?an, Proto-Germanic *sp?an? (“to prosper, succeed, be happy”), from Proto-Indo-European *speh?- (“to prosper, turn out well”). Cognate with Scots spede, speid (“success, quickness, speed”), Dutch spoed (“haste; speed”), German Low German Spood (“haste; speed; eagerness; success”), German Sput (“progress, acceleration, haste”). Related also to Old English sp?wan (“to be successful, succeed”), Albanian shpejt (“to speed, to hurry”) and Russian ???????? (spešít?, “to hurry”), Latin sp?s (“hope, expectation”), sp?r? (“hope”, verb), perhaps also to Ancient Greek ?????? (speúd?, “to urge on, hasten, press on”).

Noun

speed (countable and uncountable, plural speeds)

1. The state of moving quickly or the capacity for rapid motion.

   Synonyms: celerity, rapidity, velocity

2. (mathematics, physics) The rate of motion or action, specifically the magnitude of the velocity; the rate distance is traversed in a given time.

   Hyponyms: lightspeed, speed of light, speed of sound

3. (photography) The sensitivity to light of film, plates or sensor.
4. (photography) The duration of exposure, the time during which a camera shutter is open (shutter speed).
5. (photography) The largest size of the lens opening at which a lens can be used.
6. (photography) The ratio of the focal length to the diameter of a photographic objective.
7. (slang, uncountable) Amphetamine or any amphetamine-based drug (especially methamphetamine) used as a stimulant, especially illegally.

   Synonyms: see Thesaurus:methamphetamine

8. (archaic) Luck, success, prosperity.
9. (slang) Personal preference.

10. (finance, uncountable) A third-order measure of derivative price sensitivity, expressed as the rate of change of gamma with respect to changes in the underlying asset price.

    Synonyms: DgammaDspot, gamma of the gamma

    Hypernym: Greeks

Derived terms

Related terms

Translations

See also

Units for measuring speed: metres/meters per second, m/s, kilometres/kilometers per hour, km/h (metric); knot, kt, kn (nautical); feet per second, ft/s, ft/sec and fps, miles per hour, mph (imperial and U.S. customary); mach (aeronautical)

Etymology 2

From Middle English speden, from Old English sp?dan (“to speed, prosper, succeed, have success”), from Proto-West Germanic *sp?dijan (“to succeed”). Cognate with Scots spede, speid (“to meet with success, assist, promote, accomplish, speed”), Dutch spoeden (“to hurry, rush”), Low German spoden, spöden (“to hasten, speed”), German sputen, spuden (“to speed”).

Verb

speed (third-person singular simple present speeds, present participle speeding, simple past and past participle sped or (mostly UK) speeded)

1. (intransitive, archaic) To succeed; to prosper, be lucky.
   • 1596-97, William Shakespeare, The Merchant of Venice, Act V, Scene i^[1]:

     We have been praying for our husbands' healths,

     Which speed, we hope, the better for our words.

     Are they returned?

   • 18^thc., Oliver Goldsmith, Introductory to Switzerland

     At night returning, every labor sped, / He sits him down the monarch of a shed: / Smiles by his cheerful fire, and round surveys, / His children’s looks, that brighten at the blaze;

2. (transitive, archaic) To help someone, to give them fortune; to aid or favour.
   • with rising gales that sped their happy flight

3. (intransitive) To go fast.
4. (intransitive) To exceed the speed limit.

5. (transitive) To increase the rate at which something occurs.
   • 1982, Carole Offir & Carole Wade, Human sexuality, Harcourt Brace Jovanovich, p.454:

     It is possible that the uterine contractions speed the sperm along.

   • 2004, James M. Cypher & James L. Dietz, The process of economic development, Routledge, p.359:

     Such interventions can help to speed the process of reducing CBRs and help countries pass through the demographic transition threshold more quickly […].

6. (intransitive, slang) To be under the influence of stimulant drugs, especially amphetamines.
   • 2008, Christos Tsiolkas, The Slap, Allen and Unwin, p.46:

     If Hector had not been speeding, it was possible that his next thought would have hurt: he loves his uncle unconditionally, in a way he will never love me.

7. (obsolete) To be expedient.
8. (archaic) To hurry to destruction; to put an end to; to ruin.
9. (archaic) To wish success or good fortune to, in any undertaking, especially in setting out upon a journey.
10. To cause to make haste; to dispatch with celerity; to drive at full speed; hence, to hasten; to hurry.

    • He sped him thence, home to his habitation.

11. To hasten to a conclusion; to expedite.
    • 1726, John Ayliffe, Parergon juris canonici Anglicani

      Judicial acts […] are sped in open court at the instance of one or both of the parties.

Usage notes

• The Cambridge Guide to English Usage indicates that sped is for objects in motion (the race car sped) while speeded is used for activities or processes, but notes that the British English convention does not hold in American English.
• Garner's Modern American Usage (2009) indicates that speeded is incorrect, except in the phrasal verb, speed up. Most American usage of speeded conforms to this.
• Sped is about six times more common in American English (COCA) than speeded. Sped is twice as common in UK English (BNC).

Quotations

• For quotations using this term, see Citations:speed.

Derived terms

• speed up
• Godspeed

Translations

Anagrams

• Peeds, deeps, pedes, spede

French

Noun

speed m (plural speeds)

1. speed (amphetamine)

English

Pronunciation

• IPA^(key): /???/
• Homophone: Rush
• Rhymes: -??

Etymology 1

From Middle English risshe, rusch, risch, from Old English rysc, risc, from Proto-West Germanic *ruskij?, borrowed from Latin r?scum (“butcher's broom”) + *-j? (animal and plant suffix). Cognates include West Frisian risk, Dutch rus (“bulrush”), Norwegian Bokmål rusk, dialectal Norwegian ryskje (“hair-grass”).

Noun

rush (plural rushes)

1. Any of several stiff plants of the genus Juncus, or the family Juncaceae, having hollow or pithy stems and small flowers, and often growing in marshes or near water.
2. The stem of such plants used in making baskets, mats, the seats of chairs, etc.
3. The merest trifle; a straw.
   • 1712, John Arbuthnot, The History of John Bull

     John Bull's friendship is not worth a rush.

4. A wick.

Synonyms

• (plant of the genus Juncus): juncus

Translations

Etymology 2

Perhaps from Middle English ruschen, russchen (“to rush, startle, make a loud rushing noise”), from Old English hrys?an (“to jolt, startle”), from Proto-Germanic *hurskijan? (“to startle, drive”), from *hurskaz (“fast, rapid, quick”), from Proto-Indo-European *?ers- (“to run, hurry”).

Cognate with Old High German hurscan (“to speed, accelerate”), Old English horsc (“quick, quick-witted, clever”).

Noun

rush (plural rushes)

1. A sudden forward motion.
   • 1642, Henry Wotton, A Short View of the Life and Death of George Villiers

     A gentleman of his train spurred up his horse, and, with a violent rush, severed him from the duke.
2. A surge.

3. General haste.

4. A rapid, noisy flow.

5. (military) A sudden attack; an onslaught.
6. (video games) The strategy of attacking an opponent with a large swarm of weak units, rather than spending time developing their abilities.

   Synonym: zerg

7. (contact sports) The act of running at another player to block or disrupt play.

8. (American football, dated) A rusher; a lineman.

9. A sudden, brief exhilaration, for instance the pleasurable sensation produced by a stimulant.

10. (US, figuratively) A regulated period of recruitment in fraternities and sororities.

11. (US, dated, college slang) A perfect recitation.
12. (croquet) A roquet in which the object ball is sent to a particular location on the lawn.

Derived terms

Translations

Verb

rush (third-person singular simple present rushes, present participle rushing, simple past and past participle rushed)

1. (transitive or intransitive) To hurry; to perform a task with great haste.
   • c. 1683, Robert West, The further Exmaination of Robert West of the Middle-Temple, Barrister at Law

     A party of men […] shoud be ready to rush out; and upon the noise of the first shot immediately run down to the Gate and break in.
2. (intransitive) To flow or move forward rapidly or noisily.
3. (intransitive, soccer) To dribble rapidly.
4. (transitive or intransitive, contact sports) To run directly at another player in order to block or disrupt play.
5. (transitive) To cause to move or act with unusual haste.

6. (intransitive, military) To make a swift or sudden attack.
7. (military) To swiftly attack without warning.
8. (video games, slang, transitive) To attack (an opponent) with a large swarm of units.

   Synonym: zerg

9. (transitive or intransitive, US, college) To attempt to join a fraternity or sorority; to undergo hazing or initiation in order to join a fraternity or sorority.
10. (transitive) To transport or carry quickly.

11. (transitive or intransitive, croquet) To roquet an object ball to a particular location on the lawn.
12. (US, slang, dated) To recite (a lesson) or pass (an examination) without an error.

Synonyms

• See also Thesaurus:rush (hurry)

Derived terms

• downrush
• rushing

Translations

Adjective

rush (not comparable)

1. Performed with, or requiring urgency or great haste, or done under pressure.

Usage notes

Used only before a noun.

See also

• rushes

Further reading

• Juncaceae on Wikipedia.Wikipedia
• Rush_(football) on Wikipedia.Wikipedia

Anagrams

• Hurs, RHUs, Suhr

Norwegian Bokmål

Etymology

From English rush

Noun

rush n (definite singular rushet, indefinite plural rush, definite plural rusha or rushene)

1. a rush (Etymology 2)

Derived terms

• gullrush
• rushtid

References

• “rush” in The Bokmål Dictionary.
• “rush” in Det Norske Akademis ordbok (NAOB).

Norwegian Nynorsk

Etymology

From English rush

Noun

rush n (definite singular rushet, indefinite plural rush, definite plural rusha)

1. a rush (Etymology 2)

Derived terms

• gullrush
• rushtid

References

• “rush” in The Nynorsk Dictionary.