In-geminates is an uncommon word that refers to the act of doubling or repeating something. Synonyms for this word include duplication, repetition, twin, recapitulation, reiteration, and recurrence. In-geminates is often used to describe situations where something is repeated twice or more times for emphasis or clarity. Other synonymous phrases include "doubling down," "repeating oneself," and "echoing." The use of synonyms can help to add variety to writing and make it more interesting to read. By using different words to describe the same action, writers can avoid repetition and create dynamic, engaging text.