different between productive vs effective

English

Etymology

Borrowed from Late Latin productivus.

Pronunciation

• IPA^(key): /p???d?kt?v/

Adjective

productive (comparative more productive, superlative most productive)

1. Capable of producing something, especially in abundance; fertile.
2. Yielding good or useful results; constructive.
3. Of, or relating to the creation of goods or services.
4. (linguistics, of an affix or word construction rule) Consistently applicable to any of an open set of words.

   • Moreover, this relationship is a productive one, in the sense that when new Adjectives are created (e.g. ginormous concocted out of gigantic and enormous), then the corresponding Adverb form (in this case ginormously) can also be used. And in those exceptional cases where Adverbs do not end in -ly, they generally have the same form as the corresponding Adjective, as with hard, fast, etc.

5. (medicine) Of a cough, producing mucus or sputum from the respiratory tract.
6. (medicine) Of inflammation, producing new tissue.
7. (set theory) A type of set of natural numbers, related to mathematical logic.

Usage notes

In English, the plural suffix “-es” is productive because it can be appended to an open set of words (singular nouns ending in sibilants). Thus, if a new word with that pattern becomes an English noun (e.g. *examplex), it would have a default plural (e.g. *examplexes) because “-es” is productive.

Synonyms

• See also Thesaurus:productive

Antonyms

Related terms

• productively
• productiveness
• productivity

Translations

References

• productive in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
• productive in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.

French

Adjective

productive

1. feminine singular of productif

Latin

Pronunciation

• (Classical) IPA^(key): /pro?.duk?ti?.u?e/, [p?o?d??k?t?i?u??]
• (Ecclesiastical) IPA^(key): /pro.duk?ti.ve/, [p??d?uk?t?i?v?]

Adjective

pr?duct?ve

1. vocative masculine singular of pr?duct?vus

English

Etymology

From French effectif, from Latin effect?vus (“productive; effective”), from effici? (“I make; I bring about”).

Pronunciation

• (weak vowel distinction) IPA^(key): /??f?kt?v/
• (weak vowel merger) IPA^(key): /??f?kt?v/
• Rhymes: -?kt?v

Adjective

effective (comparative more effective, superlative most effective)

1. Having the power to produce a required effect or effects.

   Synonym: efficacious

2. Producing a decided or decisive effect.
   • 1650, Jeremy Taylor, The Rule and Exercises of Holy Living

     Whosoever is an effective, real cause of doing his neighbour wrong, is criminal.

3. Efficient, serviceable, or operative, available for useful work.

4. Actually in effect.

5. (geometry, of a cycle or divisor) Having no negative coefficients.
6. (physics, for any effective theory) approximate; Not describing the fundamental dynamic changes in some system as they happen.

Usage notes

Webster's Revised Unabridged Dictionary from 1913 still lists efficient and effective as synonyms, but all major dictionaries now show that these words now only have different meanings in careful use. Use of both for the other meaning is however widespread enough that Longman's Exam Dictionary, for example, finds it necessary to proscribe the use of one for the other with several examples at each entry and provides the following summary:

• efficient = working quickly and without waste
• effective = having the desired effect

Related terms

Translations

Noun

effective (plural effectives)

1. (military) a soldier fit for duty
   • 1876, Dabney Herndon Maury, Southern Historical Society Papers: Volume 2, Number 4, Recollections of the Elkhorn Campaign:

     The Army of the West reached Corinth sometime after the battle of Shiloh. We were 15,000 effectives, and brought Beauregard's effective force up to 45,000 men.

French

Pronunciation

• IPA^(key): /e.f?k.tiv/
• Homophone: effectives

Adjective

effective

1. feminine singular of effectif

Latin

Adjective

effect?ve

1. vocative masculine singular of effect?vus