40

Từ điển WordNet v3.1 - WordNet Dictionary

I - noun

the cardinal number that is the product of ten and four (Freq. 3)
• Syn:
forty, XL
• Hypernyms:
large integer

II - adjective

being ten more than thirty (Freq. 19)
• Syn:
forty, xl, twoscore
• Similar to:
cardinal