I. ˈ ̷ ̷ˌ ̷ ̷ noun
Etymology: lock (II) + stitch
: a sewing machine stitch formed by the looping together of two threads one on each side of the material being sewn
II. transitive verb
: to sew on or together with a lockstitch
lockstitching the border of the cuff
intransitive verb
: to sew with a lockstitch
most modern sewing machines lockstitch