His meaningful gaze made me uneasy.

His words are meaningless.

His talk was completely nonsense.

This discussion is completely meaningless.

He joined two pieces of wood to make one large board.

He is good at defeating enemies in the game.

This land has a wide road frontage to the south.

Japanese clitics are important for understanding grammar.

This connection is very important.

In order to calculate the value of the cotangent, you need to divide the length of the adjacent side of a right triangle by the length of the opposite side.