大头钉

tack / thumbtack / push pin

see 大夫[dai4 fu5]

big; large; great / older (than another person) / eldest (as in 大姐[da4 jie3]) / greatly; freely; fully / (dialect) father / (dialect) uncle (father's brother)

big head / mask in the shape of a big head / the larger end of sth / the main part / the lion's share / dupe / sucker / (old) silver coin with a bust of Yuan Shikai 袁世凱|袁世凯[Yuan2 Shi4 kai3] on the obverse side

head / hair style / the top / end / beginning or end / a stub / remnant / chief / boss / side / aspect / first / leading / classifier for pigs or livestock / CL:個|个[ge4]

suffix for nouns

nail / to follow closely / to keep at sb (to do sth) / variant of 盯[ding1]

to join things together by fixing them in place at one or more points / to nail / to pin / to staple / to sew on