The act of greeting someone’s arrival, especially by saying "Welcome!"; reception.

The utterance of such a greeting.

Kind reception of a guest or newcomer.
We entered the house and found a ready welcome.

The state of being a welcome guest.

To affirm or greet the arrival of someone, especially by saying "Welcome!".

To accept something willingly or gladly.
We welcome suggestions for improvement.

Whose arrival is a cause of joy; received with gladness; admitted willingly to the house, entertainment, or company.
Refugees welcome in London!

Producing gladness.
a welcome present;  welcome news

Free to have or enjoy gratuitously.
You are welcome to the use of my library.

Greeting given upon someone's arrival.

Ellipsis of you're welcome.