Man’s best friend
Definition 1 of 1
Pro Tip 1/3Idiomatic Origin
Originated from dogs' loyal companionship to humans throughout history. 
Since ancient times, dogs have earned their title as man's best friend.
Pro Tip 2/3Figurative Meaning
Used metaphorically to emphasize the strong bond between dogs and humans. 
After a long day, seeing my dog reminds me why they're called man’s best friend.
Pro Tip 3/3Positive Connotation
This phrase has a positive emotional connotation, reflecting trust and affection. 
Her loyalty to her owner proves she's truly man’s best friend.