forty-eight /fɔɹtɪ ɛɪːt/noun 1number 1forms 2 noun1 •(US) A period of 48 hours' leave, i.e. two days.They had their ten-day leaves and regular forty-eights from behind the nets of Bantry Bay and Scapa Flow […] — 1919 number1 •The cardinal number immediately following forty-seven and preceding forty-nine. formsforty eights · forty-eights
