Gauge

criterion standard mark measure gage yardstick benchmark check scale guideline bore test touchstone norm caliber calibre

estimate value judge assess evaluate calculate guess measure weigh appraise assay barometer benchmark criterion calibrate guideline instrument rate size up meter approximate valuate norm scale size standard test yardstick

standard of measurement

standard rule model example type pattern guide test check mark degree extent scope size basis capacity scale meter indicator norm criterion benchmark sample yardstick guideline magnitude height width depth span bore touchstone exemplar barometer