Final answer:
In English, a signal word is used to indicate a cause and effect relationship between two events or ideas. Signal words can include words like 'because', 'since', 'as a result', and 'therefore' among others.
Step-by-step explanation:
Signal word is the term that someone or something that produces a result is called. In English, signal words are often used to indicate a cause and effect relationship between two events or ideas. For example, words like 'because', 'since', 'as a result', and 'therefore' are commonly used signal words.
Learn more about The use of signal words to indicate cause and effect in English language