1. the number 40

1. the numbers from 40 to 49, especially when referring to someone’s age or to a decade

Examples

• There are forty students in the class.
• She counted forty sheep in the field.
• He’s in his early forties.
• The temperature reached forty degrees.
• My grandmother is forty-five years old.
• The nineteen-forties were a difficult decade.
• Forty minutes passed before the bus arrived.