Gladius | Webster's Dictionary of the English Language

gladius
glădĭus, ĭi, m. (also archaic glă-dĭum, ii, n., Lucil. ap. Non. 208, 13; cf. Varr. L. L. 9, § 81 Mül...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
gladius
gladius ī, m a sword: vaginā vacuus, drawn: gladiis res geritur, S.: gladios strinxerunt, drew, Cs....

An Elementary Latin Dictionary