keep back

phrasal verb
1
to stay at a distance from somebody/something
دور ایستادن, جلو نرفتن, عقب ایستادن, فاصله گرفتن
2
to make a student stay at school after normal hours as a punishment
مجازات ماندن بعد وقت, نگه داشتن در مدرسه
3
to make a student repeat a year at school because of poor grades
مانع ارتقاء سال شدن, بازداشتن از پیشرفت تحصیلی, یک سال تحصیلی تکرار کردن
4
to make somebody stay at a distance from somebody/something
فاصله نگه داشتن, دور نگه داشتن, مانع نزدیک شدن
Barricades were erected to keep back the crowds.
5
to prevent a feeling, etc. from being expressed
پنهان کردن احساسات, بازداشتن از بیان, کنترل کردن احساس
She was unable to keep back her tears.
synonym restrain
6
to continue to have a part of something
نگه داشتن, محفوظ نگاه داشتن
He kept back half the money for himself.
7
to refuse to tell somebody something
پنهان کردن, بازنگو کردن
I'm sure she's keeping something back from us.