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Tap any rung for its meaning.
Two stepping stones: the L (rung 1, for likes) and the V (rung 2, for lives) — each borrowed to keep a rung a real word, then given back before the end. There may be several par routes — the census above shows which ones climbers actually took.
A two-wheeled pedal-powered vehicle.
Bike is a shortening of 'bicycle,' which was formed from Latin and Greek parts meaning two and circle or wheel. The shortened form became popular in everyday speech not long after bicycles themselves became common. It is now the standard informal word for the vehicle.
Full entry on Wiktionary ↗A tall, narrow structure rising above its surroundings.
Tower came into English from an Old French word, which took it from Latin. The Latin word referred to a high defensive structure. It is related to similar words in Greek and may share a very ancient root connected with the idea of height.
Full entry on Wiktionary ↗Definitions give each word’s most common meaning — the full entries live at Wiktionary.