An island in the AEgean Sea, off the coast of Thracia, about 32 miles distant. This Thracian Samos was passed by Paul on his voyage from Troas to Neapolis (Acts 16:11) on his first missionary journey. It is about 8 miles long and 6 miles broad. Its modern name is Samothraki.
Easton’s Bible Dictionary
Samothracia
Name meaningan island possessed by the Samians and Thracians
Easton’s Bible Dictionary (1897), public domain. Text via Theographic Bible Metadata, CC BY-SA 4.0.