[side street] {n.} A street that runs into and ends at […]

[side with] {v.} To agree with; help. * /Alan always sides […]

[sidekick] {n.} A companion; a close friend of lesser status. * […]

[sif] "[As if]"

[sifn't] "As if not", used in reply to "[sif]".

[sight] See: [AT FIRST GLANCE] or [AT FIRST SIGHT], [AT SIGHT] […]

[sight for sore eyes] {n. phr.}, {informal} A welcome sight. * […]

[sight unseen] {adv. phr.} Before seeing it; before seeing her, him, […]

[sight-read] {v.} To be able to play music without memorization by […]

[sign] See: [HIGH SIGN], [INDIAN SIGN], [ROAD SIGN].