The phrase "hand and glove" is an idiom that means two things or people work well together or are closely connected. Some synonyms for this phrase include "inseparable," "coordinated," "harmonious," "synergetic," "mutually beneficial," and "complementary." Other expressions that convey a similar meaning include "on the same page," "in sync," "two peas in a pod," "matching pair," and "perfect combination." Whether describing a business partnership, a friendship, or a romantic relationship, these synonyms all suggest a strong and mutually supportive connection between two entities.