刷牙

牙刷 yáshuā HSK 4 #8,358

toothbrush

刷 shuā HSK 4 #3,768

to brush; to scrub / to paint; to apply / to swipe (a card); to scroll (on a phone)

刷子 shuāzi HSK 4 #13,840

brush; scrub brush

牙 yá HSK 4 #2,057

tooth / ivory

牙齿 yáchǐ HSK 7-9 #2,527

tooth / teeth

电动牙刷 diàndòng yáshuā

electric toothbrush

牙医 yáyī #4,591

dentist

假牙 jiǎyá #10,631

false teeth / dentures

牙膏 yágāo HSK 7-9 #8,590

toothpaste

咬牙 yǎoyá #28,631

to clench one's teeth / to grit one's teeth (enduring hardship) / to gnash one's teeth (in anger)