SLACK definition: 1. loose or not tight: 2. If business is slack, there are not many customers. 3. not trying hard…. Learn more. Slack is where work happens. Bring your people, projects, tools, and AI together on the world’s most beloved work operating system. Master the word "SLACK" in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource. Slack definition: not tight, taut, firm, or tense;. See examples of SLACK used in a sentence.
