backside → bagful
babble: I cannot listen to his constant babble.
baby talk: I was talking baby talk to my little one.
bachelor: Gabriel remained a bachelor all his life.
bachelor party: Luke also looked very sleepy from his bachelor party the night before.
backbiting: You should always refrain your tongue from backbiting.
backbone: Agriculture forms the backbone of our country’s economy so far.
backbreaking: It was backbreaking task to clean snow from the roof all at once.
backtalk (rude and lack of respect replies to someone): I want none of your backtalk this time! Just do as you’re told.