Quote:
Originally Posted by Unregistered  which one is correct
Valentine's cards
Valentine cards
Valentines' cards |
All three, I'm afraid - which is not very helpful.
They are sent to mark "St Valentine's Day" - which gives us
Valentine's cards.
By back-formation from the process of sending these cards, two nouns (or one, with two meanings) were formed.
A Valentine can be either the recipient of such a card, or an anonymous wish or gift sent on 14 February. Hence
Valentine card.
Finally, taking the first of those meanings, people who receive such cards are 'Valentines'. Hence
Valentines' cards.
Personally, I'd favour the first form: 'Valentine's cards'. But I wouldn't say that any one of your three options is 'wrong'.
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