The word(s) "imam" appears 3 time(s) in 3 verse(s) in Quran in Mohsin Khan translation.

(1) And (remember) when the Lord of Ibrahim (Abraham) [i.e., Allah] tried him with (certain) Commands, which he fulfilled. He (Allah) said (to him), "Verily, I am going to make you an imam (a leader) for mankind (to follow you)." [Ibrahim (Abraham)] said, "And of my offspring (to make leaders)." (Allah) said, "My Covenant (Prophethood) includes not Zalimun (polytheists and wrong-doers)."

(2) So, when the Qur'an is recited, listen to it, and be silent that you may receive mercy. [i.e. during the compulsory congregational prayers when the imam (of a mosque) is leading the prayer (except Surat Al-Fatihah), and also when he is delivering the Friday-prayer Khutbah]. (Tafsir At-Tabari).

(3) (And remember) the Day when We shall call together call human beings with their (respective) imam [their Prophets, or their records of good and bad deeds, or their Holy Books like the Qur'an, the Taurat (Torah), the Injeel (Gospel), the leaders whom the people followed in this world.]. So whosoever is given his record in his right hand, such will read their records, and they will not be dealt with unjustly in the least.