HOBNOB is a playable word

hobnob Scrabble® Dictionary

verb
hobnobbed, hobnobbing, hobnobs
to associate in a friendly way
23 Playable Words can be made from "HOBNOB"
   2-Letter Words (5 found)
   3-Letter Words (11 found)
   4-Letter Words (6 found)
   6-Letter Words (1 found)