* Cognate: This term refers to words that have a common ancestor and are related in meaning. For example, "mother" in English and "madre" in Spanish are cognates. While they might not sound or spell exactly the same, they share a common root.
* Loanword: This refers to a word that is borrowed from one language and adopted into another. Often, loanwords retain their original spelling and pronunciation. For example, "sushi" is a Japanese loanword in English.
* Internationalism: This term refers to words that are used in multiple languages with similar meanings and often similar spelling and pronunciation. Examples include "internet," "computer," and "democracy."
* International word: This term is similar to "internationalism" and often refers to words used in scientific, technical, or business contexts that are widely accepted in different languages.
Ultimately, the best way to describe a word that sounds and spells the same in two different languages is to simply say that it is a word that is shared between the two languages.
For example, you could say, "The word 'taxi' is a word that is shared between English and French, meaning it sounds and spells the same in both languages."