Physical Exertion; Mental Process; Attempt
This page is the CodyCross answer for the clue below from World of Books, Group 289, Puzzle 1 (Peer Reviewed Journal).
Question is: Physical Exertion; Mental Process; Attempt
and the answer is: EFFORT
Word Meaning:
EFFORT — The work involved in performing an activity; exertion.
Definitions from Wiktionary.