How to spell COUNTOWN correctly?

The correct spelling for "countdown" can be suggested as "count down" or "count-down". One can also advise checking spellings on a search engine or using a spell-check function.

• countdown The stadium screen flashed the countdown as the game began.
• downtown I am going to meet my friends for lunch downtown.

Intertubing

• antedating
• entertain
• entertainer
• entertaining
• inditing
• inner-tubing
• intertwine
• interurban
• intuiting
• undertaking