circularise vs sow

circularise is not a noun while sow is a noun.

Word	Noun	Adjective	Verb	Adverb
circularise	No	No	Yes	No
sow	Yes	No	Yes	No

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

Other hyponyms of circularise include podcast, generalise, generalize, popularise, popularize, vulgarise, vulgarize, carry, run.

circularise (noun)	sow (noun)
	an adult female hog

circularise (verb)	sow (verb)
cause to become widely known	introduce into an environment
distribute circulars to	place (seeds) in or on the ground for future growth
canvass by distributing letters	place seeds in or on (the ground)