Make up and Make as if

Make up verb - To be all the substance of.

Make as if and make up are semantically related In some cases you can use "Make as if" instead a verb "Make up".

Make as if verb - Begin or appear to begin an action.

Make up and make as if are semantically related in pretend topic. Sometimes you can use "Make up" instead a verb phrase "Make as if", if it concerns topics such as play the part of.