talented person / human resource, manpower

to correspond to / to respond, to keep up with

correspondence to / (computing) compatibility / dealing with

need, necessity

needed, necessary

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

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?

what number, how many (used with a counter) / (used with も) many (used with a counter)