• majong,
• mahjongg,
• mah-jong,
• mah-jongg,
• mahhong,
• mahnong,
• mahmong,
• mahiong,
• mahuong,
• mahjojg,
• mahjohg,
• mahjhong,
• mahjog,
• majhong,
• mahjo.g,
• mahjang,
• mahuwng,
• mahdon,
• makkong,
• maajoun

• maconnais,
• makings,
• mason jar,
• mah-jongg,
• marking,
• masking,
• masonic,
• making.

The adjective form of the word "mahjong" is "mahjongg".

The plural form of the word "mahjong" is "mahjong." The word does not change when referring to multiple sets of the game or multiple instances of playing the game.

The singular form of "mahjong" is still "mahjong". It is both the singular and plural form of the word.