Small words, surprising things.
Answer: Tent
A yurt is a round, portable tent used by nomads across Central Asia for centuries.
Answer: Jug
An ewer is a large, wide-mouthed pitcher, often paired with a washbasin. Don't confuse it with a ewe.
Answer: Lake
A tarn is a small mountain lake, usually carved out by a glacier. England's Lake District is full of them.