デー
also: デイ · ディ
Meanings
1
Suffix attached to nouns to form names of special days, observances, or holidays. Often used in commercial or promotional contexts.
What will you give on Valentine's Day next month?
At this store, every Friday is double points day.
2
noun-modifying (irregular)
Prenominal element used in compounds to indicate something occurring during the day, as opposed to night. Most commonly seen in デーゲーム (day game).
See also: デーゲーム
Today's match is a day game, so don't forget to prepare for the heat.
Usage patterns
- 〈物〉デーused as a suffix to name a special or promotional day associated with something
This supermarket has a 'five-times-points day' on the 5th of every month.