There are 2 definitions of blench in English:

blench1

Syllabification: blench
Pronunciation: /blenCH
 
/

verb

[no object]
Make a sudden flinching movement out of fear or pain: he blenched and struggled to regain his composure
More example sentences
  • But even Melville might have blenched at Browning's final exordium.
  • Martha Stewart would blench at the Beehive decor, and it's hard to imagine Helen Clark posing with fluffy Persian cats, but otherwise Martha and Helen could pretty much swap places.
  • A headline in the current Spectator made me blench.

Origin

Old English blencan 'deceive', of Germanic origin; later influenced by blink.

More definitions of blench

Definition of blench in:

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Pronunciation: ˈkraʊdsɔːs
verb
obtain (information) by enlisting help of many people…

There are 2 definitions of blench in English:

blench2

Syllabification: blench
Pronunciation: /
 
blenCH/

verb

chiefly dialect
variant spelling of blanch.

More definitions of blench

Definition of blench in:

Get more from Oxford Dictionaries

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Word of the day crowdsource
Pronunciation: ˈkraʊdsɔːs
verb
obtain (information) by enlisting help of many people…