o, d, n, p, r, i are letters that make 'drop in'
Ro, in, drop, IN, In are words within 'drop in'
1 possible definitions for 'drop in'
Under this definition, drop in is a verb and has the following properties:
drop by, come by have the same meaning as 'drop in'
'drop in' can be a type of visit, call in, call.