pin-money

n [U] (a) (esp formerly) small amount of money given to a woman or earned by her for her personal needs, esp clothes （尤指旧时）（给女子的或女子挣的）零花钱, 私房钱（尤指买衣物用的）. (b) money saved or earned for small extra expenses 小积蓄; 少量备用钱.

pillion, pillory, pillow, pillow-fight, pillowcase (also `pillowslip), pilot, Pilot Officer, pilot-boat, pilot-fish, pilot-light (also `pilot-burner), pimento, pimp, pimpernel, pimple, pimpled, pimply, pin, pin down, pin-ball, pin-head, pin-stripe, pin-table, pin-up, pinafore, pinafore dress, pince-nez, pincer, pincer movement, pinch, pinchbeck, pinched, pincushion, pine, pine-cone, pine-needle, pineal, pineal gland, pineapple, ping, ping-pong,