Gain access to thousands of additional definitions and advanced search features—ad free! JOIN NOW
Share controlled substance
Resources for controlled substance
Keep scrolling for more
More Definitions for controlled substance
Comments on controlled substance
What made you want to look up controlled substance? Please tell us where you read or heard it (including the quote, if possible).
marked by fawning attentiveness
Get Word of the Day daily email!
What did you just call me?! A Quiz
Test your knowledge - and maybe learn something along the way.
Test Your Knowledge - and learn some interesting things along the way.
Roger Stone posts controversial photo
Former RNC chair derides Trump
emergency, national emergency
Trump declares crisis over wall
Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!
Conjugating an irregular verb
It relates to godfathers.
Nothing to see here.
Words from the week of 2/15/2019
Comedian ISMO on what separates a boot from a trunk
Comedian ISMO on the complexities of the word 'tip'
How to use a word that (literally) drives some people nuts.
The awkward case of 'his or her'
Never be caught off guard
A quiz for lovers and haters
SCRABBLE® fans, sharpen your skills!