This Valentine's Day words worksheet gets your child familiar with love-themed idioms and phrases. Learn a little Valentine's Day vocabulary, straight from the heart! With this fill-in-the-blank activity, kids will define common terms and idioms that contain the word "heart." This Valentine's Day words worksheet provides good comprehension practice, and gives kids a chance to use their best judgment to define terms they don't know. Learn some cool Valentine's Day words and phrases in this worksheet.