Stuff meaning: Stuff is one of those words

Stuff is one of those words you use in all kinds of contexts, or for all kinds of stuff. When you throw a bunch of stuff into a bag, you could be referring to any arrangement of things. When you talk about someone's possessions, informally, you're talking about his stuff. Define stuff. stuff synonyms, stuff pronunciation, stuff translation, English dictionary definition of stuff. n. 1. The material out of which something is made or formed; substance. 2. The essential substance or elements; essence: "We are such stuff / As dreams are... stuff: The material out of which something is made or formed; substance. The meaning of STUFF is materials, supplies, or equipment used in various activities. How to use stuff in a sentence.