WordReference Random House Learner's Dictionary of American English © 2026
hu•mid•i•fy /hyuˈmɪdəˌfaɪ/USA pronunciation
v. [~ + object], -fied, -fy•ing.
hu•mid•i•fi•er, n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2026- to make humid.
hu•mid•i•fi•er, n. [countable]
hu•mid•i•fy
(hyo̅o̅ mid′ə fī′ or, often, yo̅o̅-),USA pronunciation v.t., -fied, -fy•ing.
hu•mid′i•fi•ca′tion, n.
- to make humid.
- humid + -ify 1880–85