to not  lose  (any) sleep  over  somebody or something
<i>not</i>
nɒt
not
lose
lu:z
looz
(any)
ɛni
eni
sleep
sli:p
slip
<abbr style="text-decoration: underline;" title="over / about" > over</abbr>
əʊvə
ewvē
somebody or something
sʌmbədi
sambēdi

ইংরেজিতে "not lose (any) sleep over somebody or something "এর সংজ্ঞা ও অর্থ

to not lose (any) sleep over somebody or something
01

to not be upset or concerned about someone or something at all 

to {not} [lose] (any|) sleep (over|about) {sb/sth} definition and meaning
বাগধারা
অনানুষ্ঠানিক
উদাহরণ
I would not lose any sleep over his comments. 
LanGeek
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