ngram

This term is primarily used in computational linguistics, natural language processing, and bioinformatics. It describes a sliding window approach to analyzing sequences, where the value of n determines the length of the sequence. For example, a unigram is a single item, a bigram consists of two, and a trigram consists of three.

In technical discourse, the word is treated as a standard countable noun. While it is a specialized term of art, it is used consistently across different programming languages and statistical models to refer to the specific fragments of text being analyzed.