Etymology: Greek myriad-, myrias, from myrioi countless, ten thousand
2: having innumerable aspects or elements
(definition courtesy of Merriam-Webster)
Synonyms: countless, endless, heaping, immeasurable, incalculable, multitudinous, no end of, numberless, oodles, slew, uncounted
Antonyms: limited, measurable
Used in a sentence: When Catherine entered Marcus's apartment, she noticed a myriad of records stacked in milk crates lining the walls.
Used in a song: "But I am married to your charms and grace./ I go crazy like the good old days./ You make me want to pick up a guitar/ and celebrate the myriad ways that I love you." Interpol "Slow Hands" mp3