[ sem-ee-sweet, sem-ahy- ]
/ ˌsɛm iˈswit, ˌsɛm aɪ- /
somewhat sweet; containing a small amount of sweetening: a semisweet cookie; semisweet chocolate.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Word Origin and History for semisweet
Online Etymology Dictionary, © 2010 Douglas Harper