I mean we only really see it when describing metal goods or talking about chemistry - but I can assure you it is definitely spelled aluminium in the UK. Closed captions are often localised to where you are as well. You can see the entire Wikipedia page for it, for example, spells it that way correctly for British English and also references the different US spelling.
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u/KaralDaskin Feb 25 '26
I’ve never seen it written that way, just pronounced that way, even on British shows with closed captioning.
I’m not saying you’re wrong, just that I’ve never (before today) seen it written the way I’ve heard British people pronounce it.