Manan is a name and a word with meanings in various languages.
Manan (IPA: [mənənə]; Sanskrit: मनन, manana ?; IPA: [mənən]; Hindi: मनन, manan ?) means deep thought, contemplation, or profound reflection. The root of the word is man (Sanskrit मन) — the mind — i.e., the faculty that produces thoughts and feelings.
In Vedanta group of Hindu philosophical traditions (see, for instance, Paranjpe 1998, p. 173), there are three steps to self-realization: (1) "shravana" i.e., careful listening to the teaching of the Vedanta, (2) "manana" i.e., repeatedly and deeply reflecting on or contemplating what is learned from those teachings, and (3) "nididhyasana" i.e., becoming completely absorbed in contemplation that no other thought enters the mind.
The Sanskrit derived Manan is a relatively uncommon name given to males in India.
Mannan means "king" or "leader" in Tamil.
The name Manan can also be of Persian background and is given to males. Manan's meaning encompasses the ideas of conscience, mind, and soul. It insinuates the qualities of thoughtfulness, sensitivity, and consideration. The name apparently also means fun-loving, naughty, and joyous as well as disciplined and righteous. A "Manan" would not agree with or appreciate wrongdoing, unmannered persons.
Manan or Mannan is a name that is also found in Islam; it's an Arabic name. Generally, this is not used alone, as it's preceded by names like Abdul etc. (Abdul Manan or Abdul Mannan, means Slave of the God), it is so because Manan is one of God's names, hence the name Abdul Manan is given.