"a skiff or small boat," is a diminutive of ploion (No. 2), Mar 3:9, Mar 4:36, Joh 6:22 (but No. 2 in the 2nd part of the verse), Joh 6:23 (here some texts have No. 2), Joh 6:24, Joh 21:8.
<2,,4143, ploion>
AV, "ship," is preferably translated "boat" (RV) in the Gospels, where it is of frequent use; it is found 18 times in Acts, where, as in Jam 3:4, Rev 8:9, Rev 18:19, it signifies a ship. See SHIP.
<3,,4627, skaphe>
is, lit., "anything dug or scooped out" (from skapto, "to dig"), "as a trough, a tub, and hence a light boat, or skiff, a boat belonging to a larger vessel," Act 27:16, Act 27:30, Act 27:32.