Names That Mean Key

Clover is a charming, perky choice if you want to move beyond hothouse blooms like Rose and Lily, and it's recently become a new celeb favorite, chosen by both Neal McDonough and Natasha Gregson Wagner, who used it to honor her mother, Natalie Wood, one of whose most iconic films was Inside Daisy Clover. 
 Clover also has a long association with good luck, via the four-leaf clover, and through the shamrock symbol of Ireland. It first came to wide notice via a couple of soap opera characters.
 In the movie The Good Shepherd , Angelina Jolie's character is called Clover--but her birth name was actually Margaret.

Clover

Interestingly, Locke is a gender-neutral name used only for boys, while word name Lock is so rare it was given to fewer than five children of either gender in the US last year.

Names That Mean Key

The names

Clover

Lock