打码

打码	dǎ mǎ	to pixelate an image / to key in captcha authentication codes
打	dá	(loanword) dozen / Taiwan pr. [da3]
打	dǎ	a semantically light, transitive verb that is combined with various grammatical objects to form compound verbs and verb-object phrases with a diverse range of meanings (e.g. 打伞 "to hold an umbrella", 打电话 "to make a phone call", 打针 "to get an injection", 打手套 "to knit gloves", 打气 "to inflate") / to hit; to strike / to fight / (coll.) from; since (as in 打那以后 "since then")
码	mǎ	weight / number / code / to pile / to stack / classifier for length or distance (yard), happenings etc