windpipe vs trachea

windpipe and trachea both are nouns.

Word	Noun	Adjective	Verb	Adverb
windpipe	Yes	No	No	No
trachea	Yes	No	No	No

As nouns, windpipe and trachea are synonyms defined as:

windpipe and trachea: membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi

windpipe (noun)	trachea (noun)
membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi	membranous tube with cartilaginous rings that conveys inhaled air from the larynx to the bronchi
	one of the tubules forming the respiratory system of most insects and many arachnids