| invoice | (verb) send a bill to | - |
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| invoke | (verb) cite as an authority; resort to | Synonyms: appeal |
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| (verb) request earnestly (something from somebody); ask for aid or protection | Synonyms: appeal |
| (verb) summon into action or bring into existence, often as if by magic | Synonyms: arouse, bring up, call down, call forth, conjure, conjure up, evoke, put forward, raise, stir |
| involve | (verb) make complex or intricate or complicated | - |
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| (verb) occupy or engage the interest of | - |
| (verb) have as a necessary feature | Synonyms: imply |
| (verb) connect closely and often incriminatingly | Synonyms: affect, regard |
| (verb) contain as a part | - |
| (verb) engage as a participant | - |
| (verb) require as useful, just, or proper | Synonyms: ask, call for, demand, necessitate, need, postulate, require, take |