regain /ɹiːˈɡeɪn/noun 2verb 1forms 5 noun2 •The act or process of regaining something.The samples with SAPs showed a regain in strength when stored in an RH of more than 90%. — 2021 •The amount of width a woven cloth grows by when the fibers swell, used to determine the width of the reed to use in weaving.In particular, at high humidities the regain of wool is lower. — 2008 verb1 •To get back; to recover possession of. formsregained · regaining · regaineth · regains · regainest