TALL is the opposite of SHORT.
We use tall to say that something is above average height (of people, buildings . . .)
a tall man
a short man
the tallest tower in France
a tall bookcase
A : How tall are you?
B : I am five feet, six inches tall.
HIGH is the opposite of LOW.
High means having a large distance from top to bottom or a long way above the ground. We often use high when we speak about inanimate things (non-living things).
Examples in sentences:
• It’s high time we left. (Use simple past form with ‘it’s high time’ or ‘it’s time’)
• The airship flies high among the clouds .
• The plane flies low over the house.
• The sun is high in the sky.
• The tall building rises high in the sky .
• The child is not tall enough to reach the highest shelf .
• That tall boy can jump over a high wall.