Carnations are very gentle flowers. There are more of a use to be for decorations and enlightenment of place it self. It can be given as a gift to some one, but be careful what color you should give.
Some meanings of colors from carnation.

CARNATION, PINK: A woman's love, I'll never forget you, mother's love.

CARNATION, PURPLE: Capriciousness.

CARNATION, RED: Alas for my poor heart, admiration, my heart aches for you, friendship, pride, fascination.

CARNATION, STRIPED: Refusal, No, sorry I can't be with you.

CARNATION, WHITE: Innocence, faithfulness, sweet and lovely, pure love, ardent love, good luck. These lovely flowers have lasting qualities, and are often handed out on Mother's Day to symbolize the purity and strength of motherhood. They were handed out at the first Mother's Day service in 1908.

CARNATION, YELLOW: Disdain, rejection, you have disappointed me.