4 ms·I'm in London and it was not clear at all, considering how pretty much anything here is HM.by 21 9y agoI'm in London and it was not clear at all, considering how pretty much anything here is HM.johneth 9y agoI think you might be an outlier in this case. 'HMS' is pretty widely known to mean 'ship' (in the UK, at least).pbhjpbhj 9y agoBut the 'having islands' adds confusion: HM QEII is known to have islands, to the layman boats are not.