fluid
UK: ˈfluːɪd | US: ˈfluːɪd
n. a substance that flows and takes the shape of its container (e.g., liquids or gases)
adj. capable of flowing easily; not rigid or fixed
adj. (figurative) adaptable or changing smoothly
fluid = flu<flow> + id<adjective suffix>
- flu (from Latin fluere, meaning "to flow")
- id (a suffix forming adjectives, often indicating a state or quality)
Etymology Origin:
The word fluid traces back to Latin fluidus, derived from fluere ("to flow"). The root flu- appears in many English words related to flow (e.g., flux, influence). The suffix -id was adopted into Middle English from Old French, reinforcing the idea of a flowing or adaptable nature. The term originally described physical substances like water or air but later expanded metaphorically to describe flexibility in ideas or systems.
Water is a fluid that adapts to the shape of its container.
The dancer’s movements were fluid and graceful.
The company maintains a fluid approach to project management.
Blood is a vital fluid in the human body.
Her fluid speech captivated the audience.