Hi
I have looked up this "AS BY" and the meaning of do down sombody/something.
do down verb
: to get the better of (as by trickery)
from https://www.merriam-webster.com/dictionary/do%20down#synonyms
do down
in American English
1. to criticize, belittle, or demean; disparage
2. to gain advantage over, as by deception
from https://www.collinsdictionary.com/dictionary/english/do-down
My questions 1: What is meaning of as by?
My questions 2: I cannot understand what merriam-webster said about "to get the better of (as by trickery)". Is that different to Collins's one?
g. He won the game by trickery. (He used tricks and deception to win the game) Get the better of = to win, to beat, to surpass
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as = for example
by = by means of; using
e.g.
He won the game by trickery. (He used tricks and deception to win the game)
Get the better of = to win, to beat, to surpass