The fundamental Greek verb of existence and being, appearing in countless forms across dialects—Aeolic ἔμμι, Doric ἐντί, Epic and Ionic variations. It expresses simple existence ('I am'), predication ('the word is truth'), and location ('he is in the temple'). New Testament authors inherit this verb's philosophical and theological weight: in the Septuagint it translates God's self-revelation to Moses ('I AM WHO I AM'), and in John's Gospel Jesus' 'I am' statements echo divine identity. The verb's ubiquity makes it invisible until it bears theological freight.