opto- root words — words with the opto- root

The root opto- comes from Greek optos, meaning sight, seen. 8 words in Dendril are built from it, including synopsis, optometry, dioptase, dioptometer, optoelectronic, optometer, optometric, synoptic. Dendril shows them on a free interactive word map — no signup, no ads.

Words that use the opto- root

Explore words with opto- — words containing the opto- root and sharing its sense of "sight, seen". Examples include synopsis, optometry, dioptase, dioptometer, optoelectronic, optometer, optometric, synoptic. Click any word to see its own roots, definition, and related words.

The opto- root means sight, seen, from Greek optos. Recognizing it helps you decode and remember the many English words built on this root.