koh-AH-pur-ay-tuhd
/koʊˈɑpɚˌeɪtəd/
cooperated is pronounced koh-AH-pur-ay-tuhd (/koʊˈɑpɚˌeɪtəd/). Cooperated means joined in action with others toward a common goal, often implying mutual effort and coordination. It is used to describe past cooperation or ongoing collaboration, typically in formal or semi-formal contexts. The term emphasizes collaborative behavior and coordinated activity rather than individual effort.
Cooperated means joined in action with others toward a common goal, often implying mutual effort and coordination. It is used to describe past cooperation or ongoing collaboration, typically in formal or semi-formal contexts. The term emphasizes collaborative behavior and coordinated activity rather than individual effort.
"The teams cooperated to complete the project ahead of schedule."
"Various agencies cooperated on disaster relief operations."
"She cooperated with investigators while maintaining her own boundaries."
US: /koʊˈɒpəˌreɪtɪd/; UK: /kəʊˈɒpərətɪd/; AU: /ˈkəʊ.ə.pəˌreɪ.tɪd/. Key cues: primary stress on the second syllable 'op', then a light reduction in the second to last syllable '-re-' and final '-dɪd'. Start with a slow glide from /k/ to /oʊ/ then emphasize /ˈɒp/ and finish with /əˌreɪtɪd/.
Two common errors: 1) Misplacing stress across syllables, e.g., 'co-OP-er-ated' with heavy stress on 'oper'; correct is secondary stress on 'ope' and primary on 're' as /koʊˈɒpəˌreɪtɪd/ or /kəʊˈɒpərətɪd/. 2) Vowel reduction in the unstressed syllables; avoid over-enunciating every syllable. Use light schwa in /ə/ for the unstressed 'er' and 'a' parts. Practice by saying the word aloud in chunks: 'ko-op-er-a-ted' with reducing vowels in the middle.
US: Strong /oʊ/ in the first syllable, /ɒ/ in the stressed second syllable, rhotic /r/ is pronounced. UK: /əʊ/ or /ɒ/ depending on region, non-rhotic or variable rhotics; lighter /ə/ in unstressed syllables; stress often on the 'op' or 'er' depending on phrase. AU: similar to UK with non-rhotic tendencies and a more centralized /ə/ in unstressed syllables; final /tɪd/ sometimes realized as /tɪd/ or flapped depending on speed.
Because it combines a stressed open vowel sequence /oʊ/ or /əʊ/ with a mid-stressed /ˈɒpə/ followed by /reɪtɪd/. The 'er' in the middle can be reduced to a schwa, and the 'ated' ending can elide slightly in fast speech. Additionally, the two-syllable lift in the middle creates a rhythm that can be tricky in connected speech, especially when followed by a consonant cluster. Practice ensures accurate stress and smooth vowel transitions.
Yes. The word features a secondary stress position on the syllable with /ˈɒp/ and a final sensitive -ed ending that may reduce to /ɪd/ or /tɪd/ in fluent speech, producing /ˈɒpəˌreɪtɪd/ or /ˈɒpərətɪd/ depending on accent. The first syllable 'coo-' often reduces to a light /koʊ/ in American speech, while British and Australian patterns may lean toward /kəʊ/ with less dramatic initial vowel.
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The word cooperated comes from Middle English cooperen, from Old French cooperer, based on Latin cooperari (to work together). The root co- means 'together', and operari derives from oper-, meaning 'to work' (from Latin opus, operis, 'work, task'). The sense of collaboration or acting in concert with others emerged in English by the 15th–16th centuries with phrases like 'to cooperate' meaning to work jointly. Over time, the past participle 'cooperated' developed regular English inflection and shifted toward broader usage in business, politics, and everyday teamwork. The modern sense emphasizes coordinated effort and joint action, often in organizational or institutional contexts, with usage common in both formal reports and everyday discussion of group tasks.
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💡 These words have similar meanings to "cooperated" and can often be used interchangeably.
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Words that rhyme with "cooperated"
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