very enthusiastic and eager

they were excited about the prospect

the excited children

of or in an energy state higher than the normal or ground state

the excited atom returns to its former energy state and emits light or other radiation

cause (someone) to feel very enthusiastic and eager

flying still excites me

Gould was excited by these discoveries

give rise to (a feeling or reaction)

the ability to excite interest in others

produce a state of increased energy or activity in (a physical or biological system)

the energy of an electron is sufficient to excite the atom