to find / to seek, to look for / to desire, to wish / to demand, to sue, to compel

needed, necessary

need, necessity

mathematics (field of study)

(adverbial particle, dismissive, derogatory) emphasizes disgust, contempt, or otherwise negative feelings of the speaker: whatever

the bottom

question, problem on homework etc. / a question; a matter (of time etc.) / a problem (something that needs to be dealt with); a trouble / an issue; a matter

whatchamacallit, X

What? What did you say?

bottom / depth / sole / base