Comparisons [S]

Synthase vs. Synthetase

Synchronise vs. Synchronize

Skill vs. Strategy

Scaringly vs. Scarily

Succeded vs. Succeeded

Sorted vs. Ordered

Serial vs. Series

Sculpted vs. Sculptured

Stern vs. Aft

Snipper vs. Sniper

Spaghettoni vs. Spaghetti

Shlongs vs. Schlongs

Stabilised vs. Stabilized

Sensor vs. Detector

Speedometer vs. Tachometer

Stretch vs. Strech

Sleek vs. Slick

Sightseeing vs. Tourism

Steward vs. Hostess

Shaurma vs. Shawarma

Shaky vs. Shakey

Suspect vs. Doubt

Sence vs. Sense

Speeling vs. Speering

Scent vs. Flavour

Sallary vs. Salary

Stress vs. Highlight

Slope vs. Slant

Shipp vs. Ship

Slender vs. Skinny

Subkingdom vs. Infrakingdom

Schedule vs. Roster

Study vs. Studying

Spin vs. Quark

Sheath vs. Scabbard

Storehouse vs. Warehouse

Superstructure vs. Infrastructure

Swap vs. Barter

Spanker vs. Spankee

Summarised vs. Summarized

Screenshot vs. Snapshot

Style vs. Stile

Spatular vs. Spatula

Slice vs. Chop

Schpiel vs. Spiel

Smew vs. Smee

Supervisor vs. Engineer

Skiff vs. Skip