SIMPLE DICTIONARY

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

2. The utterance of such a greeting.

3. Kind reception of a guest or newcomer.

We entered the house and found a ready welcome.

4. The state of being a welcome guest.

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

2. To accept something willingly or gladly.

We welcome suggestions for improvement.

1. Whose arrival is a cause of joy; received with gladness; admitted willingly to the house, entertainment, or company.

Refugees welcome in London!

2. Producing gladness.

a welcome present;  welcome news

3. Free to have or enjoy gratuitously.

You are welcome to the use of my library.

1. Greeting given upon someone's arrival.

2. Ellipsis of you're welcome.