Added 10 October 2026 sender /ˈsɛndəː/ noun Categories: PeopleThingsUncommon Words noun ! Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about sender at Wordnik → Where our words come from → Someone who sends. The package was addressed to someone we didn't know, so we returned it to the sender. A device or component that transmits, as in telegraphy or computer networks. Related Words: transmitterconsignorconsigneeregistrantforwarderexporterissuersubmitterissuingremittingpostermailer Back to today's word