jacuzzi
Synonym discussion
Sense: noun/1
Jacuzzi is a brand name that has become a common term for any bathtub fitted with underwater jets that blow warm water and air to create bubbles and a massaging effect. Hot tub is a broader, more generic term that often describes a wooden outdoor tub filled with heated water, sometimes with jets but not necessarily — it emphasises the warmth and communal soaking experience rather than the jet mechanism. Whirlpool bath is more formal and technical; it appears frequently in hotel listings and bathroom catalogues to describe any bathtub with jet technology, without referencing a specific brand. Spa is the widest of the four: it can refer to a health resort, a beauty treatment facility, or a jacuzzi-like tub — when used for the tub, it is often combined with words such as 'outdoor spa' or 'spa bath'. For everyday speech, 'jacuzzi' is the most common word in casual conversation; for hotel brochures and product labels, 'whirlpool bath' is preferred.
Common collocations
Etymology
The word comes from the Italian surname Jacuzzi. In the 1950s, Candido Jacuzzi invented a portable hydrotherapy pump to treat his son's arthritis. The family company later built bathtubs with built-in jets, and the brand name Jacuzzi became so widely recognised that people began using it for any kind of whirlpool bath.