1.
Wordplay.
2. Games in which players compete by building words from their individual letters or letter groups, or possibly building sentences from individual words, or sometimes making words in other ways. Examples:
3. More loosely interpreted, any game based on words. This includes cluing games like Password, Pyramid, and Catchphrase, and other games involving whole words, phrases, or sentences such as Fictionary, the Match Game, Wise and Otherwise, and Opposites Attract.