<p><strong>Interjection</strong></p><ul><li>A word of kindly greeting, as to one whose arrival gives pleasure: Welcome, stranger!</li></ul><p><strong>Noun</strong></p><ul><li>A kindly greeting or reception, as to one whose arrival gives pleasure: to give someone a warm welcome.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>Welcomed, welcoming: to greet the arrival of (a person, guests, etc.) with pleasure or kindly courtesy.</li><li>To receive or accept with pleasure; regard as pleasant or good: to welcome a change.</li><li>To meet, accept, or receive (an action, challenge, person, etc.) in a specified, especially unfriendly, manner: They welcomed him with hisses and catcalls.</li></ul><p><strong>Adjective</strong></p><ul><li>Gladly received, as one whose arrival gives pleasure: a welcome visitor.</li><li>Agreeable, as something arriving, occurring, or experienced: a welcome rest.</li><li>Given full right by the cordial consent of others: She is welcome to try it.</li><li>Without obligation for the courtesy, favor, or service received (used as a conventional response to expressions of thanks): He thanked me, and I told him he was welcome.</li></ul>