Translation guide
The trip taken by a newly married couple, or the early period of a new relationship or endeavor. In Japanese, the loanword ハネムーン is common, but 新婚旅行 is the standard term for the trip. For the metaphorical 'honeymoon period,' 蜜月 is used.
Referring to the vacation taken by a couple right after their wedding.
The standard Japanese term for a honeymoon trip. Literally 'newlywed trip.'
We went to Hawaii for our honeymoon.
Decide on a honeymoon destination.
Loanword from English, often used in travel industry contexts or casual conversation. Slightly more stylish or Western-sounding.
We toured Europe on our honeymoon.
The metaphorical 'honeymoon phase' when everything seems perfect.
新婚旅行 is the standard, neutral term. ハネムーン is a loanword that sounds more fashionable or commercial. In formal writing or news, 新婚旅行 is preferred.
蜜月 is only for the metaphorical honeymoon period, not the actual trip. Saying 蜜月に行く would be unnatural.
二人の関係はまだ蜜月だ。
Their relationship is still in the honeymoon phase.
The new president didn't even get a honeymoon period.