Honor tiles are the winds and dragons taken together. There are four Wind Tiles — East, South, West, North — and three Dragon Tiles — White, Red and Green — with four of each (3.4.15); Terminal tiles are the ones and nines of a suit, together with the honor tiles (3.4.16); Flower tiles are used: ...
Why people argue about this
People often assume that the Terminal tiles in Mahjong (MCR/WMO) are just the ones and nines of a suit without including the honor tiles like winds and dragons. However, according to the official rule, these Terminal tiles encompass all ones and nines along with the honor tiles—making it clear they're not separate from the honor set.
