to or in a double degree, quantity, or measure: doubly careful in two ways: doubly wrong
WordReference Random House Learner's Dictionary of American English © 2026
dou•bly /ˈdʌbli/USA pronunciation
adv.
WordReference Random House Unabridged Dictionary of American English © 2026- to a double measure or degree:to be doubly cautious.
- in a double manner:doubly handicapped.
dou•bly
(dub′lē),USA pronunciation adv.
- to a double measure or degree:to be doubly cautious.
- in a double manner.
- [Obs.]with duplicity.
- 1350–1400; Middle English; see double, -ly
Collins Concise English Dictionary © HarperCollins Publishers::
'doubly' also found in these entries (note: many are not synonyms or translations):
biserrate
- crystalline lens
- double
- elevenses
- enol
- extraordinary ray
- ordinary ray
- pyrazolone
- two-fold
- twofold
- yataghan