force; strength; might; vigour; vigor; energy

capability; ability; proficiency; capacity; faculty

efficacy; effect

effort; endeavours; endeavors; exertions

power; authority; influence; good offices; agency

support; help; aid; assistance

stress; emphasis

means; resources

ability; faculty

cooperation; collaboration; help; support

effort; exertion; endeavour; endeavor; hard work; striving

all one's power (strength, energy, efforts); one's utmost

physical strength; power; stamina; endurance; vigor; resistance to disease

strength (of a business, economy, etc.)

strength; power; proficiency; ability

(real) ability; true strength; merit; efficiency; competency

arms; force

powerful; strong

powerful; strong; forceful; vigorous

reassuring; encouraging