he; boyfriend

law / measure, size

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

as far as ... is concerned; in terms of ...

a target, a mark, a bullseye / an objective, an object (of doing something)

lateral thinking

thinking ability, intellect, mental capacity

thought experiment

(computing) name resolution

unsolved, unresolved