εἷς, μία, ἕν/heis, mia, hen

Sometimes this word describes something. It is an adjective.

This word is for the cardinal number 1.
This word often contrasts the “1” against others in the same count.
This word appears often in the negative: not one (Matthew 5:18; 10:29; Luke 11:46; and 12:6.
- This word is often used in counting, as in “one by one.”
- This word can make the distinction between some or one, or in more than one, and the like.
- This word can refer to “everyone”: εἰς ἕκαστος (* or each one).
- This word can mean all (of the ones) in succession.

See: Matthew 25:15; Romans 5:12, 1 Corinthians 10:8