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1. The act of increasing (something) in size or volume or quantity or scope
   - enlargement
    
2. A function expressed as a sum or product of terms
   "the expansion of (a+b)expansion2 is aexpansion2 + 2ab + bexpansion2"
    
3. A discussion that provides additional information
   - enlargement, elaboration
    
4. Adding information or detail
   - expanding upon

Derived forms: expansions

See also: expand

Type of: discourse, discussion, function, increase, map, mapping, mathematical function, single-valued function, step-up, treatment

Antonym: contraction

Encyclopedia: Expansion