consideration / discussion / speculation

to consider / to discuss / to speculate

needed, necessary

need, necessity

deep, profound

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

deep, close, thick, profound

deep, profound

(chiefly women's speech) first person singular pronoun: I, me

(polite) first-person singular pronoun: I, me