Under the pretext of being a surgeon he gained entry to the hospital.
1. pretext (n.) a reason that you pretend to have in order to hide your real reason or intention
Example: The conflict was used as a pretext for introducing military rule.
on/ under the pretext of doing sth
Example: He visited her on the pretext of borrowing a book.
a pretext to do sth
Example: A slight fall in profits gave the management a pretext to get rid of some older members of staff.
2. surgeon (n.) a doctor who is trained to perform operation involving cutting, usually in a hospital
3. entry (n.) the right or ability to go into a place
gain entry ( = succeed in entering a place )
Example: We had to remove the lock on the door to gain entry.
refuse/ deny entry
Example: Officials have been refuced entry to the two camps.
(n.) the act of entering a place
Example: They are charged with illegal entry into the US.
no entry ( = an instruction, especially one printed on a sign, that people are not allowed to go into street, area, building, or room )
(n.) the process of becoming involved in a situation
Example: America's entry into the war
When interviewed by the director, he had to fabricate a tale of his medical experience, but he was so adroit at lying that he got away with it.
4. fabricate (v.) to make up a story or piece of information in order to make someone believe something that is not true
Example: The defence accused police of fabricating evidence.
5. get away with sth ( = to manage to do something bad without being punished or criticized for it )
Example: They have repeatedly broken the law and got away with it.
get away with doing sth
Example: How can he get away with speaking to her like that?