A squabble (جھگڑا) is a noisy quarrel or 'dispute' (تکرار) about a trivial matter.

A spurt (تیزی) is a sudden gush or burst. As a verb, it means to 'speed up' (تیز کرنا) or gush out in a sudden stream.

Sportive (کھلنڈرا) is an archaic word for 'playful' (شوخ) or lighthearted.

Spontaneous (خود بخود) means happening as a result of a 'natural' (فطری) impulse, without premeditation or external cause. 'On the spot' (موقع پر) (impromptu) is a result of this.

Spirited (پُرجوش) means full of energy, enthusiasm, and determination. 'Lively' (زندہ دل) or 'energetic' is a direct synonym.

To spew (اگلنا) means to 'spit out' (تھوکنا) or expel large quantities of something forcibly. 'Swallow' (نگلنا) is the antonym.

A spate (بوچھاڑ) is a 'sudden fast rush' (اچانک تیز بہاؤ) or a large number of similar things (e.g., a spate of attacks) or a sudden flood.

Spasmodic (وقفے وقفے سے) means occurring in brief, irregular bursts, like a 'convulsive' (تشنجی) movement or spasm. 'Uninterrupted' (مسلسل) is the antonym.

Soporific (نیند آور) means tending to induce drowsiness or sleep. A 'sedative' (مسکن دوا) is a drug that has this effect.

Sophomoric (بچکانہ) means 'immature' (ناپختہ) and overconfident; juvenile, like a sophomore. 'Sophisticated' (تجربہ کار) is the antonym.