defect

noun
C1+
1
C1+
a fault in something or in the way it has been made that means that it is not perfect
عیب, نقص, اشکال, ایراد
2
a physical problem with part of somebody’s body or the way that it works
نقص, عیب
a speech defect
verb
1
to leave a political party, country, etc. to join another that is considered to be an enemy
خیانت کردن, پناهنده‌شدن, ترک‌کردن