• LainTrain@lemmy.dbzer0.com
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      6 months ago

      The way I knew it in the UK is:

      AC - singular air conditioner

      AC’s - air conditioner’s [something]

      ACs - multiple air conditioners

    • Maggoty@lemmy.world
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      6 months ago

      People like simple rules, that’s all. So for most people it’s conjunction or possessive. The hanging apostrophe starts some fun conversations too.

    • Drusas@fedia.io
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      6 months ago

      It’s incorrect in American English as well, but people commonly use it this way anyway.

    • immutable@lemm.ee
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      6 months ago

      American checking in, this was also how I was taught to pluralize throughout my education.

      The usage in the post title seemed correct to me fwiw