in force

1. In full strength, in large numbers, as in Demonstrators were out in force . This usage originally alluded to a large military force. [Early 1300s]

2. Operative, binding, as in This rule is no longer in force . This usage originally alluded to the binding power of a law. [Late 1400s]

Related Words

• accurate
• authentic
• binding
• compelling
• conclusive
• credible
• good
• lawful
• legal
• legitimate
• logical
• original
• persuasive
• solid
• true
• well-founded