Slack is valid Scrabble Word

Is slack a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is slack valid Words with Friends?
Words with Friends YES

Definitions for SLACK in dictionary:

Words related to SLACK

slacked14 slacker13 slackest14 slacking15 slackly16 slackness15 slacks12 slake9

Words that contain SLACK

slacks12 slacked14 slacken13 slacker13 slackly16 forslack17 slackens14 slackers14 slackest14 slacking15 foreslack18 forslacks18 slackened16 slackener15 slackness15 foreslacks19 forslacked20 slackeners16 slackening17 foreslacked21 forslacking21 slackenings18 slacklining18 slacknesses17 slacktivism22 slacktivist20 foreslacking22 slacklinings19 slacktivisms23 slacktivists21

How to use SLACK in a sentence

Find what other words can be done using letters: "slack"
https://scrabble-word.com/finder/slack
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