Which one is odd?1.Rain, train, (night) , day. [a]2.Nose, ring, money,

Which one is odd?
1.Rain, train, (night) , day. [a]
2.Nose, ring, money, name. _
3.Ten, bed, worker, west. _
4.Doll, put, look, books. _
5.Tie, pie, light, bake. _
6.Win, thing, wrong, wing. _