entender - to understand

entrar - to enter, go in, come in

entregar - to deliver, hand over

entretener - to entertain, amuse

entrevistar - to interview

entusiasmar - to excite; to fill with excitement [or enthusiasm]

entusiasmarse - to get excited, become excited [filled with excitement or enthusiasm]

envejecer - to age, make old, grow old, get old

envejecerse - to get old, age