plod vs splosh

plod is a noun but splosh is not a noun.

Word	Noun	Adjective	Verb	Adverb
plod	Yes	No	Yes	No
splosh	No	No	Yes	No

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

Other hyponyms of plod include slop, slosh, splash, squelch, squish.

plod (noun)	splosh (noun)
the act of walking with a slow heavy gait

plod (verb)	splosh (verb)
walk heavily and firmly, as when weary, or through mud	dash a liquid upon or against
	cause (a liquid) to spatter about, especially with force
	walk through mud or mire
	make a splashing sound