six
「六」 has another reading with different meanings.
six; 6
りゅーが二枚あるから揃うかも。
I have two sixes, so I might complete a set.
相手がりゅーを捨てたのを見逃さなかった。
I didn't miss that the opponent discarded a six.
りゅーを引いたおかげで思わぬ高い手が完成した。
Thanks to drawing a six, an unexpectedly high hand was completed.