@McTag,
Yeah, MacMillan gives me these and I don't know which one is suitable for the context:
verb
▸to find the exact size, amount, speed, etc. of something using a special tool or special equipment more...
▸to find the size of someone’s body in order to buy or make clothes for them more...
▸to be a particular size more...
▸to form an opinion about how good or bad something is more...
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It seems none.