travel vs sail

travel and sail both are nouns.

Word	Noun	Adjective	Verb	Adverb
travel	Yes	No	Yes	No
sail	Yes	No	Yes	No

As verbs, sail is a hyponym of travel; that is, sail is a word with a more specific, narrower meaning than travel:

Other hyponyms of travel include ship, ride, fly, cruise.

As verbs, sail is a hyponym of travel; that is, sail is a word with a more specific, narrower meaning than travel:

Other hyponyms of travel include tour, globe-trot, sledge, navigate, voyage, trek, trek.

travel (noun)	sail (noun)
the act of going from one place to another	an ocean trip taken for pleasure
self-propelled movement	a large piece of fabric (usually canvas fabric) by means of which wind is used to propel a sailing vessel
a movement through space that changes the location of something	any structure that resembles a sail

travel (verb)	sail (verb)
change location; move, travel, or proceed, also metaphorically	travel on water propelled by wind
make a trip for pleasure	move with sweeping, effortless, gliding motions
travel upon or across	travel on water propelled by wind or by other means
undergo transportation as in a vehicle	traverse or travel on (a body of water)
undertake a journey or trip
travel from place to place, as for the purpose of finding work, preaching, or acting as a judge