size stick vs measuring stick

size stick and measuring stick both are nouns.

Word	Noun	Adjective	Verb	Adverb
size stick	Yes	No	No	No
measuring stick	Yes	No	No	No

As nouns, measuring stick is a hypernym of size stick; that is, measuring stick is a word with a broader meaning than size stick:

size stick: a mechanical measuring stick used by shoe fitters to measure the length and width of your foot
measuring stick: measuring instrument having a sequence of marks at regular intervals; used as a reference in making measurements

Other hypernyms of size stick include measure, measuring rod.

size stick (noun)	measuring stick (noun)
a mechanical measuring stick used by shoe fitters to measure the length and width of your foot	measuring instrument having a sequence of marks at regular intervals; used as a reference in making measurements