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).

The amount, volume, or quantity of something; capacity to hold or tolerate, such as for food, drink, or character.

to exhaust one's efforts; to fulfill a duty; to do to the best of one's ability

The amount, volume, or quantity of something; capacity to hold or tolerate, such as for food, drink, or character.