"scruples" in the noun sense
1. scruple
a unit of apothecary weight equal to 20 grains
2. scruple, qualm, misgiving
uneasiness about the fitness of an action
3. scruple
an ethical or moral principle that inhibits action
"scruples" in the verb sense
1. scruple
hesitate on moral grounds
"The man scrupled to perjure himself"
2. scruple
raise scruples
"He lied and did not even scruple about it"
3. scruple
have doubts about
Source: WordNet® (An amazing lexical database of English)
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