1.
first place; first to arrive
The first to cross the finish line in a race, especially in horse racing, cycling, or other competitive events.
2.
one suit; one outfit
A counter expression for one piece of clothing, typically a suit, dress, or complete outfit.
Has two distinct meanings depending on context. In racing and competition contexts, it means first place. As a counter, it counts suits and outfits.
SENSE 1 — FIRST PLACE:
Commonly used in horse racing (競馬) and other races. The sequence continues: 二着 (second place), 三着 (third place).
SENSE 2 — CLOTHING COUNTER:
Used to count suits, dresses, and complete outfits: 一着, 二着, 三着.