A keyword is nothing more mysterious than the word or phrase a person types (or speaks) into a search engine. "Emergency plumber Augusta," "how much does a heat pump cost in Maine," and "coffee near me" are all keywords. Keyword research is the process of discovering which of those phrases your potential customers actually use — and then deciding which are worth building pages around.
The old idea of keywords — cramming an exact phrase into a page as many times as possible — is dead and actively harmful. Modern Google understands synonyms, context, and intent. Your goal is not to repeat a phrase; it is to understand the questions behind the phrases and answer them thoroughly in natural language.
For a local business, keyword research is really market research. It tells you, in your customers' own words, what they are worried about, what they are shopping for, and how they describe their problem before they know your solution.
