名詞 in.:

1. a unit of length equal to one twelfth of a foot
   同義詞：inch, in
2. a rare soft silvery metallic element; occurs in small quantities in sphalerite
   同義詞：indium, In, atomic number 49
3. a state in midwestern United States
   同義詞：Indiana, Hoosier State, IN

形容詞 in.:

1. holding office
   同義詞：in
2. directed or bound inward
   同義詞：in
3. currently fashionable
   同義詞：in

副詞 in.:

1. to or toward the inside of
   同義詞：in, inwards, inward