Term: catalyst: something that causes an important event to happen
Broader: causal agent: any entity that produces an effect or is responsible for events or results | Unrelated: stay-at-home: a person who seldom goes anywhere; one not given to wandering or travel
Broader: causal agent: any entity that produces an effect or is responsible for events or results | Unrelated: uncle: a source of help and advice and encouragement
Broader: causal agent: any entity that produces an effect or is responsible for events or results | Unrelated: predictor: information that supports a probabilistic estimate of future events
Broader: causal agent: any entity that produces an effect or is responsible for events or results | Unrelated: barrow's goldeneye: North American goldeneye diving duck
Broader: causal agent: any entity that produces an effect or is responsible for events or results | Unrelated: castration: neutering a male animal by removing the testicles
Broader: causal agent: any entity that produces an effect or is responsible for events or results | Unrelated: krummhorn: a Renaissance woodwind with a double reed and a curving tube (crooked horn)
Broader: causal agent: any entity that produces an effect or is responsible for events or results | Unrelated: dumpy level: a surveyor's level having a short telescope fixed to a horizontally rotating table and a spirit level
Broader: causal agent: any entity that produces an effect or is responsible for events or results | Unrelated: requisition: the act of requiring; an authoritative request or demand, especially by a military or public authority that takes something over (usually temporarily) for military or public use
Broader: causal agent: any entity that produces an effect or is responsible for events or results | Unrelated: pencil sharpener: a rotary implement for sharpening the point on pencils
Broader: causal agent: any entity that produces an effect or is responsible for events or results | Unrelated: cat's-tail: tall marsh plant with cylindrical seed heads that explode when mature shedding large quantities of down; its long flat leaves are used for making mats and chair seats; of North America, Europe, Asia and North Africa