How to spell ACTINITY correctly?

If you are looking for alternatives for the misspelling "actinity", the correct suggestion would be "activity". The wrong use of an extra letter changes the word entirely. "Activity" denotes a task, engagement or undertaking, thus providing a more accurate representation of what you may be referring to.

• actinium Actinium is a highly radioactive element that emits alpha particles.
• activity I enjoy participating in physical activity to stay healthy.

Intertubing

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