• a spiritual being believed to act as an attendant, agent, or messenger of God, conventionally represented in human form with wings and a long robe

• a person of exemplary conduct or virtue

Synonyms: paragon of virtue, saint, gem, treasure, nonpareil

• a person who supports a business financially, typically one who invests private capital in a small or newly established enterprise

Synonyms: backer, sponsor, supporter, benefactor, subsidizer, promoter, patron

• a former English coin minted between the reigns of Edward IV and Charles I and bearing the figure of the archangel Michael killing a dragon

• an aircraft's altitude (often used with a numeral indicating thousands of feet)

• an unexplained radar echo