Itsy-bitsy and Tiny

Itsy-bitsy adjective - (used informally) very small.

Tiny and itsy-bitsy are semantically related in small topic. In some cases you can use "Tiny" instead an adjective phrase "Itsy-bitsy".

Tiny adjective - Very small in size.

Itsy-bitsy and tiny are semantically related in teeny topic. You can use "Itsy-bitsy" instead an adjective "Tiny", if it concerns topics such as very small. informal substitute