This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Plural form of offside.

adj. illegally beyond a prescribed line or area or ahead of the ball or puck

"A minute later, Houston thought they had made it 2-1 with a Jason Garey header from about 10 yards out in the middle that went inside the near post, but Garey was called offsides."