SMARTEN

v. 1. прихорашивать(ся); принаряжать(ся); прибирать (часто smarten up); We shall have to spend some time smartening up the house if we want to get a good price for it. 2. работать усерднее, прилежнее; вести себя лучше; That boy has begun to smarten up recently, since we complained about his work.