el terno - set of three, trio, a suit or other type of clothing or outfit that comes in three piecesSpanish example: El terno y la corbata parecían el uniforme de la hinchada local.
English example: The three-piece suit and tie seemed to be the uniform of the local supporters.
Source: el terno - set of three, trio, a suit or other type of clothing or outfit that comes in three pieces (https://www.123teachme.com/spanish_feeds/word_of_the_day/2023/6/16)