A shack if I think of anymore ill tell you
A shack or shed
There are more than one potential answer:shedshackshantyshelter
shellfish
ShapeFit
No word in the English language begins with sh and ends with cy.
Shack.
shush
No single word ones but there is shamrock green and shocking pink.
talking sh*t
Actually the word "shoal" fits the criteria perfectly.
A flower that starts with SH is the Shasta daisy.
shot