Definitions
1.nounAn entity, usually animate, deemed superior to another; one who has a claim to precedence; a superior."He quickly found Ali his better in the ring."
2.verbTo improve.
3.verbTo become better; to improve.
4.verbTo surpass in excellence; to exceed; to excel.
5.verbTo give advantage to; to support; to advance the interest of.
6.nounA person who makes a bet, such as a wager on the outcome of a game of chance or a sporting event.
7.verb(with bare infinitive) Should; ought to; need to; must."The project had better get finished by the current deadline."