strand vs chromatid

strand and chromatid both are nouns.

Word	Noun	Adjective	Verb	Adverb
strand	Yes	No	Yes	No
chromatid	Yes	No	No	No

As nouns, chromatid is a hyponym of strand; that is, chromatid is a word with a more specific, narrower meaning than strand:

strand: a very slender natural or synthetic fiber
chromatid: one of two identical strands into which a chromosome splits during mitosis

Other hyponyms of strand include barb, cobweb, gossamer, myofibril, myofibrilla, sarcostyle, rhizoid, hypha, paraphysis.

strand (noun)	chromatid (noun)
a necklace made by stringing objects together	one of two identical strands into which a chromosome splits during mitosis
line consisting of a complex of fibers or filaments that are twisted together to form a thread or a rope or a cable
a pattern forming a unity within a larger structural whole
a poetic term for a shore (as the area periodically covered and uncovered by the tides)
a very slender natural or synthetic fiber

strand (verb)	chromatid (verb)
bring to the ground
drive (a vessel) ashore
leave stranded or isolated with little hope of rescue