補

to repair / to patch / to mend / to make up for / to fill (a vacancy) / to supplement

(classical) barely / just / just now

the left-radical form of Kangxi radical 145, 衣[yi1]

to complement / to make up for a deficiency

to mend

to fill a gap / to fill in a blank (on a form) / to overcome a deficiency

to wait to fill a vacancy / reserve (candidate) / alternate / substitute

lit. to mend the pen after sheep are lost (idiom) / fig. to act belatedly / better late than never / to lock the stable door after the horse has bolted

complementary / to complement each other

lit. use others' strengths to make up for one's weak points (idiom from Mencius) / to use this in place of that / what you lose on the swings, you win on the roundabouts

to augment / to supplement / to add

to compensate for lack of ability through hard work (idiom)

If you don't plug the small hole, the big hole will be hard to repair (idiom); A stitch in time saves nine.

A small hole not plugged will make you suffer a big hole (idiom); a stitch in time saves nine

ammunition depot

(coll.) to cover a shortfall by using funds intended for another purpose or by borrowing some money / (coll.) to snack

not be without some advantage / be of some help

tinker

waiting list

(sports) injury time

(after a sum has been paid in advance) to refund (in case of overpayment) or be reimbursed (in case of underpayment)

tonic / healthy concoction / (fig.) just what the doctor ordered / (Tw) pirated software

to make up for one's faults by doing good deeds (idiom)