also: ハニームーン · ハニムーン · ハネームーン
Refers to the trip newlyweds take after their wedding. Used as a noun, often with する to mean 'to go on a honeymoon'.
We went on our honeymoon to Hawaii.
Where are you planning to go for your honeymoon?
The newlyweds went to Hawaii on their honeymoon.
We're planning to have our honeymoon in Paris next month.
The couple spent their honeymoon in the Maldives.