Sedan, seize, sense, setup and seven are 5 letter words that begin with the letters se.
several
servicemen
The word "census" has the "s" sound at the beginning and end, but not in the middle. In contrast, "established" has the "s" sound in the middle but not at the beginning or end. Therefore, neither word meets the criteria of having an "s" sound at the beginning, middle, and end.
Another word for opportunity which begins with 'S' is scope.
an alliteation is a word in a sentence which have the same beginning word example.. she sings sweetly.. (s,s,s)
sop
The first word beginning with 's' in most dictionaries is usually "sad."
start
synopsis
Subway
sadisticsarcasticsardonicsatanicscenicscientificshellacsimplisticseismographicskepticsociopathicsporadicsoporificspasticspecificstoicstaticsumacsystematicsyllabicsymbolicsymphonicsystemic
scale