Rival
Part of speech: noun
Definition: A competitor (person, team, company, etc.) who is well known to another and has similar skills and achievements. Defeating a rival may be a primary or necessary goal of a competitor. Someone or something with similar claims of quality or distinction as another.
Part of speech: verb
Definition: To oppose or compete with. To equal to or surpass another.
Example sentence: One's only rival is one's own potentialities. One's only failure is failing to live up to one's own possibilities. In this sense, every man can be a king, and must therefore be treated like a king.
Equal
Part of speech: verb
Definition: To be equal to, to have the same value as.To have as its consequence.
Part of speech: adjective
Definition: The same in all respects.Exactly identical, having the same value.Unvarying, fair.Adequate; sufficiently capable or qualified.
Part of speech: noun
Definition: A person or thing of equal status to others.
Example sentence: The strong bond of friendship is not always a balanced equation; friendship is not always about giving and taking in equal shares. Instead, friendship is grounded in a feeling that you know exactly who will be there for you when you need something, no matter what or when.