ok. so you are filling out form 765 for work permit for the immigration office and on question 14 of the application for employement authorization the question is:

14. Manner Of Last Entry (Visitor, Student ,etc.)

ok. so what do you put if yiu entered illagaly into the US? well the response you have to use is "Entry Without Inspection" or simply put EWI

EWI is for people who arrived into the country for example you crossed the border.