ad·here 
/ædˈhiɚ/ verb
ad·heres; ad·hered; ad·her·ing /ædˈhiɚ/ verb [no obj] : to stick to something : to attach firmly to something
▪ The stamp failed to adhere. — usually + to ▪ The stamp failed to adhere to the envelope. ▪ The mud adhered to his shoes.
▪ The stamp failed to adhere. — usually + to ▪ The stamp failed to adhere to the envelope. ▪ The mud adhered to his shoes.
adhere to [phrasal verb]
adhere to (something) : to act in the way that is required by (something, such as a rule, belief, or promise)
▪ They will adhere to the terms of the contract. ▪ Certain standards must be adhered to by all members. ▪ She adheres to [=follows] a strict vegetarian diet.
▪ They will adhere to the terms of the contract. ▪ Certain standards must be adhered to by all members. ▪ She adheres to [=follows] a strict vegetarian diet.
