1st

Adjective (1)

1. preceding all others in time or space or degree“the first house on the right”“the first day of spring”“his first political race”“her first baby”“the first time”“the first meetings of the new party”“the first phase of his training”Synonyms: firstOpposite lastSimilar initial, original, premier, prime, firstborn, archetypal, ordinal, basic +1 moreSee also front, early, original, primary