CTRClick-through rate
Head term or parent topic The main keyword(s) in a list of other related keywords > example, head term is buy gold, related keywords, buy gold online, buy gold in Toronto, etc…
LSI KeywordsLatent Semantic Indexing: keywords are words that are related to a main keyword and are seen as semantically relevant.
Modifier KeywordAn add-on to a base keyword > example: best headphones vs the best headphones 2022
Pogo StickingGoing back and forth from a search engine results page (SERP) to an individual search result destination site. 
Search Intent The reason behind a searcher’s query
SERPSearch Engine Results Page: The page that a search engine returns after a user submits a search query.
Sentence Case vs Title CaseSentence Case: How to write an article
Title Case: How To Write An Article
Taxonomy What is the difference between taxonomy and category WordPress?

What is a Taxonomy. In broad terms, any method of grouping of posts is known as a Taxonomy. A Category and Tags are two methods of grouping posts that are present in WordPress by default.