TANKING is a playable word

tank Scrabble® Dictionary

verb
tanked, tanking, tanks
to store in a tank (a container usually for liquids)
55 Playable Words can be made from "TANKING"
   2-Letter Words (12 found)
   3-Letter Words (19 found)
   4-Letter Words (18 found)
   5-Letter Words (3 found)
   6-Letter Words (2 found)
   7-Letter Words (1 found)