A play that was his finest effort.
It was an effort to get up.
Make an effort to arrive promptly.
Although he didn't win any medals, Johnson's effort at the Olympics won over many fans.
An example of effort is someone using their brain to make a plan.
An example of effort is writing a letter.
Origin of effort
- Middle English from Old French esfort from esforcier to force, exert from Medieval Latin exfortiāre Latin ex- ex- Latin fortis strong bhergh-2 in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition