catalyst: A chemical that makes the polyester resin harden, usually MEK (methyl-ethyl-ketone)
Source: wiktionary
Ranked by relevance and common usage.
Keep "mek" when the sentence already sounds natural, when a synonym would add unintended emphasis, or when readers need the most familiar wording. A synonym should clarify or sharpen the message, not simply make the sentence look more varied.
If two options seem close, choose the one that best matches the audience and purpose of the sentence.
Choose a synonym only if it keeps the core idea of "mek" intact in the sentence you are editing.
Check whether the replacement sounds more formal, casual, emotional, technical, or forceful than the original word.
Read the full sentence after the swap. Keep the synonym only when the sentence becomes clearer or more precise.
Review note: Synonym lists are ranked with lexical data and reviewed for practical writing value. Use the comparison notes, sentence evidence, and source labels together; a high-ranking synonym can still be wrong when the audience, register, or grammar changes.
After choosing a replacement for "mek", read the sentence once for meaning and once for rhythm. The best synonym should feel natural in the full sentence, not only accurate in a word list.
If the synonym makes the sentence slower, vaguer, or more dramatic than intended, keep "mek" or choose a simpler alternative from the closest-match group.
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2 total sentences available.
catalyst: A chemical that makes the polyester resin harden, usually MEK (methyl-ethyl-ketone)
Source: wiktionary
Those that fled were predominantly royalists, leftists, and members of the Islamist-Socialist Mujahedin-e Khalgh, or the MEK, which, until its recent delisting by Washington, was considered a terrorist group by Iran and America alike. Some of those immigrants and their descendants became a visible part of the cultural scene in California, in Tehrangeles, the worst of which were depicted in the unflattering reality show Shahs of Sunset. Apart from the MEK, this older generation has mostly shied away from outright political activism, but many will sometimes support the idea of a new revolution, or even foreign intervention in Iran.
Source: wiktionary
Closest matches include artisan, butanone, craftsman, creator, maker.
Compare the replacement against real sentence context. This entry includes sample sentences so you can check tone, grammar, and meaning before swapping words.