Definition
Semantic search tries to understand what a query means and return content that answers it, even when the words differ. It uses techniques such as natural language processing and vector embeddings to compare the meaning of queries and passages. Most modern search engines and AI retrieval systems use some form of semantic matching.
For example, a search for “moisturizer that won't clog pores” can return an Aarvi Skin page describing a “non-comedogenic gel cream,” because the system recognizes that the two phrases mean the same thing. The page did not need to repeat the searcher's exact wording to be found.
Why it matters
Semantic search means pages that clearly answer the underlying question can surface even when their wording differs from the query. For AI answers, retrieval systems often use semantic matching to find passages, so clarity about what a page covers matters more than repeating keywords. Explaining concepts fully, using related terms naturally and addressing real buyer questions gives these systems a better chance of matching your content to the right queries.
What to do
- Write for the questions buyers ask, including the different ways they phrase them.
- Explain technical terms in plain language alongside the jargon.
- Cover related concepts on the same page where they help answer the main question.
Common questions
What is the difference between semantic search and keyword search?
Keyword search matches documents containing the same words as the query. Semantic search matches by meaning, so it can find relevant content even when the wording differs. Most modern systems combine both approaches, using keywords for precision and semantic matching to understand intent.
Do keywords still matter with semantic search?
Yes, but differently. Using the terms your buyers use helps both people and systems understand the page. Repeating the same keyword many times adds little. Focus on covering the topic clearly, with natural variations and related concepts, rather than hitting a target keyword density.