- Tile
- One physical Mahjong piece, such as a five dot, east wind, flower, or joker.
- Suit
- One numbered family: bams, craks, or dots.
- Rank
- The number on a suited tile, from one through nine.
- Honor tile
- A named tile, usually winds and dragons in beginner lessons.
- Rack
- The holder in front of a player where their private tiles sit.
- Wall
- The built rows of face-down tiles players draw from during play.
- Draw
- Taking a tile from the wall when it is your turn.
- Discard
- A tile placed face up into the center after a player finishes their turn action.
- Call
- Claiming another player's discard when the table rules allow it.
- Exposure
- Tiles placed face up in front of a player after a legal call or table action.
- Pair
- Two matching tiles when the official or table-agreed source calls for that kind of group.
- Pung
- Three matching tiles as a named group concept.
- Kong
- Four matching tiles as a named group concept.
- Quint
- Five matching tiles as a named group concept, normally involving joker rules explained in later lessons.
- Concealed
- Kept hidden in the rack rather than exposed; exact meaning depends on the official or table-agreed source.
- Charleston
- The passing phase used before regular turns in American Mahjong.
- Mah Jongg
- The declaration that a player believes their hand is complete under the source being used.
- Dead hand
- A table judgment that a hand can no longer legally continue; beginners should ask for the table's explanation rather than guessing.