Concordance
In linguistics, concordance is the list of essential words used in the book, article or other form of writing arranged in the alphabetical order with references of explanation anc citations where they were taken from. These links tend to also point to the specific passages where these words can be found in the original text down to sentence. The verb concord means to collect all data about the concordance words and put them in the appropriate style and form. Alternatively, this term may mean the state of agreement and correlation between multiple people, organisations, objects or phenomenons. It can be essentially used as a synonym for a similar word, accordance.
Encyclopædia Britannica, Inc. (2022). Concordance. Merriam-Webster dictionary. Retrieved from: https://www.merriam-webster.com/dictionary/concordance
Cambridge University Press. (2022). Concordance. Cambridge English dictionary. Retrieved from: https://dictionary.cambridge.org/dictionary/english/concordance