noun, noun which may take the genitive case particle 'no'
all one's power; utmost effort; full strength
Used for giving everything one has, physically or mentally. Common in phrases like 全力で, 全力を尽くす, and 全力疾走.
彼は全力で走った。
He ran with all his might.
試験に向けて全力を尽くします。
I will do my utmost for the exam.
Compound of 全 (zen, 'all') and 力 (ryoku, 'power'). The reading is on'yomi, and the word follows standard Sino-Japanese word formation.