Bedspring, mainspring are two that come to mind.
Compound words with sand:SandbagSandbankSandbarSandblastSandboxSandburgSandcastleSandhogSandlotSandlotterSandmanSandmenSandpaperSandpiperSandpitSandstoneSandstormSandwichCompound words ending with sand:Quicksand
carload truckload busload
mudslide landslide backslide
One such word is springboard. Another is springtime.
In compound words, the plural ending is usually added to the main noun or the word that is being pluralized. For example, in "cupcakes," the plural ending "-s" is added to the main noun "cake" rather than the modifier "cup."
Compound words with sand:SandbagSandbankSandbarSandblastSandboxSandburgSandcastleSandhogSandlotSandlotterSandmanSandmenSandpaperSandpiperSandpitSandstoneSandstormSandwichCompound words ending with sand:Quicksand
-blacksmith-goldsmith-gunsmith-locksmith-silversmith-tinsmith;;are all compound words ending in -smith
Compound words ending in line: airline, beeline, outline, underline,timberline,hairline, waistline
Compound words ending with belly: beer belly, pot belly
clipartcounterpartdogcartoxcartpushcartsweetheartupstart
highchair
lessworthy
Some compound words ending with 'town' are:boomtowncrosstowndowntownhometownmidtownMotownshantytownuptown
wildfire and housefire.
windshield
windmill
breakdowncomedowncountdowncrackdownknockdownmeltdownrundownshowdownshutdownsplashdownsundown