Tetragram and Written word

Tetragram noun - A word that is written with four letters in an alphabetic writing system.

Written word and tetragram are semantically related. In some cases you can use "Written word" instead a noun "Tetragram".

Written word noun - The written form of a word.

Tetragram and written word are semantically related. Sometimes you can replace term "Tetragram" with "Written word", this terms are similar.