Slang for Someone Recently Entered in an Activity

This page is the CodyCross answer for the clue below from Health and Fitness, Group 2137, Puzzle 3 (Endurance Activity).

Question is: Slang for Someone Recently Entered in an Activity

and the answer is: NEWBIE

Word Meaning:

NEWBIE — (slang) A newcomer, someone new to something.

Definitions from Wiktionary.

Slang For Someone Recently Entered In An Activity - Health and Fitness CodyCross Answers | CodyCross Solutions