S

sail (on a lake boat)
sailing days, sailing time

sail (over ice)
sailing

sail loft

sail (on) the lakes

sail room

salamander

sale(s) barn

salt pork

salvage tug

sap pan

saw horse

scale 
scaling stick, scaler

schooner
sailing schooner

scoring axe

Scotch

Scottish Settlement
Scottish Settlement, Scotch Settlement, Scots Settlement

scratch up

scribbler

scuffling

sea time

Seaway (The)
seaway pilot, seaway system

senior fourth
senior fourth book

separate school
separate school inspector, separate school team

separator

seventh son of a seventh son

seventy-eight

sharecrop

on shares

share-farm

sheaf

sheepskin

shenanigans

sheriff

shindig, n.

shindig, v.

ship-to-shore

shoot the breeze
shot my breeze

shoot the bull

shore gravel

show

sideroad

skaffel

skedaddler

skeg

Ski-doo

skidoo (derivatives)
skidooing, skidooer
Ski-doo party, Ski-doo suit, Ski-doo engine 

skid-steer

skiff

skipper

slab wood

slug

slumlord

slush hole

slush pump

smoking room

snap shot

soapbox derby

somewheres

sound post

sourpuss

speakeasy

spell

spider
spider frying pan

spinster

sponsor, n.

sponsor, v.

springwise

square dance, n.
square dance set

square dance, v.

stable cleaner

stage

stagecoach

starter

steamboat, n.
steamboat canal

steamboat, v.

step

step dance

step dancer

stevedore

stir up

St. Lawrence Skiff

stone

stook, n.

stook, v.

stove coal

strap (the)
get/give the strap, put the strap

strap

strawstack

street dance

strongbox

stump fence

sulky
sulky horse, sulky racing

sulphur water

summer folk

summer home

summer house

summer kitchen

summer person

summer picnic

summer place

summer resident

summer school

Sunday school

supper (event)

supper (meal)

suppertime

sweet corn