climbing iron vs crampoon

climbing iron and crampoon both are nouns.

Word	Noun	Adjective	Verb	Adverb
climbing iron	Yes	No	No	No
crampoon	Yes	No	No	No

As nouns, climbing iron and crampoon are synonyms defined as:

climbing iron and crampoon: an iron spike attached to the shoe to prevent slipping on ice when walking or climbing

Other synonyms of climbing iron include climber, crampon.

climbing iron (noun)	crampoon (noun)
an iron spike attached to the shoe to prevent slipping on ice when walking or climbing	an iron spike attached to the shoe to prevent slipping on ice when walking or climbing
a spiked steel frame strapped to the boot to help in climbing trees, or poles.	a hinged pair of curved iron bars; used to raise heavy objects