different between speed vs flow

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

• enPR: fl?
  • (Received Pronunciation) IPA^(key): /fl??/
  • (General American) IPA^(key): /flo?/
• Homophones: floe, Flo
• Rhymes: -??

Etymology 1

From Middle English flowen, from Old English fl?wan (“to flow”), from Proto-West Germanic *fl?an, from Proto-Germanic *fl?an? (“to flow”), from Proto-Indo-European *pl?w-, lengthened o-grade form of *plew- (“to fly, flow, run”). Compare float.

Noun

flow (countable and uncountable, plural flows)

1. A movement in people or things with a particular way in large numbers or amounts
2. The movement of a real or figurative fluid.
3. (mathematics) A formalization of the idea of the motion of particles in a fluid, as a group action of the real numbers on a set.

   The notion of flow is basic to the study of ordinary differential equations.

4. The rising movement of the tide.
5. Smoothness or continuity.

6. The amount of a fluid that moves or the rate of fluid movement.

7. A flow pipe, carrying liquid away from a boiler or other central plant (compare with return pipe which returns fluid to central plant).
8. (psychology) A mental state characterized by concentration, focus and enjoyment of a given task.
9. The emission of blood during menstruation.

10. (rap music slang) The ability to skilfully rap along to a beat.

11. (computing) The sequence of steps taken in a piece of software to perform some action. (Usually preceded by an attributive such as login or search.)

Synonyms

• (continuity): See also Thesaurus:continuity

Antonyms

• (movement of the tide): ebb
• (continuity): See also Thesaurus:discontinuity

Hyponyms

Derived terms

• ebb and flow
• flowchart
• flowmeter
• freeflow
• single-flow

Translations

Further reading

• flow on Wikipedia.Wikipedia
• Flow (psychology) on Wikipedia.Wikipedia

Verb

flow (third-person singular simple present flows, present participle flowing, simple past and past participle flowed)

1. (intransitive) To move as a fluid from one position to another.

   Rivers flow from springs and lakes.

   Tears flow from the eyes.

2. (intransitive) To proceed; to issue forth.

   Wealth flows from industry and economy.
3. (intransitive) To move or match smoothly, gracefully, or continuously.

   The writing is grammatically correct, but it just doesn't flow.

   • , Dedication

     Virgil […] is […] sweet and flowing in his hexameters.

4. (intransitive) To have or be in abundance; to abound, so as to run or flow over.

   • In that day […] the hills shall flow with milk.

   • 1845, John Wilson, The Genius and Character of Robert Burns

     the exhilaration of a night that needed not the influence of the flowing bowl

5. (intransitive) To hang loosely and wave.

   a flowing mantle; flowing locks

   • March 11, 1788, Alexander Hamilton, The Federalist Papers

     the imperial purple flowing in his train

6. (intransitive) To rise, as the tide; opposed to ebb.

   The tide flows twice in twenty-four hours.
7. (transitive, computing) To arrange (text in a wordprocessor, etc.) so that it wraps neatly into a designated space; to reflow.
8. (transitive) To cover with water or other liquid; to overflow; to inundate; to flood.
9. (transitive) To cover with varnish.
10. (intransitive) To discharge excessive blood from the uterus.

Derived terms

• flowable, reflowable
• free-flowing
• overflow
• underflow

Translations

Etymology 2

Uncertain. Perhaps from Old Norse flói (“a large bay, firth”), see floe. Compare Scots flow (“peat-bog, marsh”), Icelandic flói (“marshy ground”).

Noun

flow (plural flows)

1. (Scotland) A morass or marsh.

References

• “flow, n.².”, in OED Online ?, Oxford, Oxfordshire: Oxford University Press, launched 2000
• “flow, v., n.¹” in the Dictionary of the Scots Language, Edinburgh: Scottish Language Dictionaries.

Anagrams

• Wolf, fowl, wolf

Spanish

Pronunciation

• IPA^(key): /?flow/, [?flow]

Noun

flow m (plural flows)

1. flow