one stroke; a single stroke
Refers to a single, gentle stroking motion, often with the hand. Used in contexts like petting an animal or smoothing something with one pass.
See also: 撫でる (なでる)
I give the cat's back one stroke.
Compound of 一 (ひと, 'one') and 撫で (なで, the continuative form of 撫でる 'to stroke').