Word: 老朋友 (lǎopéngyou) 老朋友 dictionary entry lǎopéngyou old friend; period; menstruation Full dictionary entry for 老朋友 Example sentences using 老朋友 2 sentences, showing page 1 of 1. 今天我碰见了一个老朋友。 Jīntiān wǒ pèngjiànle yí gè lǎopéngyou. Today I bumped into an old friend. 我碰上了一个老朋友。 Wǒ pèngshàngle yí gè lǎopéngyou. I bumped into an old friend.