[ek-struh]
–adjective
1. beyond or more than what is usual, expected, or necessary; additional:
2. larger or better than what is usual:
–noun
3. something extra or additional: the little amenities and extras that make life pleasant.
4. something of superior quality.
–adverb 5. in excess of the usual or specified amount: beyond the ordinary degree; unusually; uncommonly: done extra well; extra large.
Origin: 1770–80; shortening of extraordinary