to encourage a person to be cheerful, finish a task etc by making frequent requests etc

chase, follow

(of events) to happen at the same time; occupy the same period of time

go along with; coexist

a place where two or more things have been joined together; to come together

unite

of lead; Light Emitting Diode

guide physically

to go after (a person, animal, car etc) in order to catch or kill

chase, follow