To the greatest extent; as much as possible; most. Often used before adjectives to form words like 尽快 jǐn​kuài (as soon as possible) or before location words to mean "furthest" or "extreme" (e.g. at the very end or the very front).

To let someone do as they please; to allow something to happen without interference.

To give priority to someone or something; to use or deal with something first

(Colloquial) always; constantly; all the time.

(When used before a noun of location) furthest; extreme; at the very end

Staying within the bounds of a resource or time limit