honeymoon

UK: /ˈhʌnimuːn/ US: /ˈhʌniˌmun/ ,(hun′ē mo̅o̅n′)

WordReference Random House Learner's Dictionary of American English © 2025

hon•ey•moon /ˈhʌniˌmun/   n. [countable]

1. a vacation or trip taken by a newly married couple.
2. any new relationship in which there is an initial period of harmony and goodwill.

v. [no object]

3. to spend one's honeymoon:
   They honeymooned in Paris.

hon•ey•moon•er, n. [countable]

WordReference Random House Unabridged Dictionary of American English © 2025

hon•ey•moon  (hun′ē mo̅o̅n′), n. 

1. a vacation or trip taken by a newly married couple.
2. the month or so following a marriage.
3. any period of blissful harmony:
   Their entire 60 years of marriage was one long honeymoon.
4. any new relationship characterized by an initial period of harmony and goodwill:
   The honeymoon between Congress and the new president was over.

v.i. 

5. to spend one's honeymoon (usually fol. by in or at).

• honey + moon 1540–50

hon′ey•moon′er, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

honeymoon / ˈhʌnɪˌmuːn/ noun

1. a holiday taken by a newly married couple
2. a holiday considered to resemble a honeymoon: a second honeymoon
3. the early, usually calm period of a relationship, such as a political or business one

verb

1. (intransitive) to take a honeymoon

Etymology: 16th Century: traditionally explained as an allusion to the feelings of married couples as changing with the phases of the moon

ˈhoneyˌmooner noun