- (uncountable) The fact of a thing occurring simultaneously with something else; correlation.
- (countable) An instance of a thing occurring simultaneously with something else; coïncidence.
- 1987: Günter Holtus and Johannes Kramer [Hg.], Romania et Slavia Adriatica: Festschrift für Žarko Muljačić, page 403 (Buske Verlag; ISBN 978‒3‒87118‒849‒7)
- Gerhard Rohlfs, HGIS (3 vols., Bern: A. Francke, 1949–54), II, 282f. (= § 523), stressed the frequent coöccurrence of prefixation and choice of the -ire class endings in de-adjectival verbs (aggrandire, imbruttire, ribrunire — with which apparire, obviously, has little if anything in common) and tried to place the wavering in pres. ind. appaio 〜 apparisco, etc. in a broader context (aborro 〜 aborrisco, applaudo 〜 applaudisco, etc.).