oníwèé-mẹ́wàá noun /ō.nĩ́.ꜜwé.mɛ́.ꜜwá/
Definitions
  1. high school graduate idiomatic
Etymology
From oní- (“one who has”) + ìwé (“book”) + mẹ́wàá (“ten”), literally “One characterized by ten books”, compare with oníwèé-mẹ́fà (“elementary school graduate”)
Component words
oní-one who hasìwébookmẹ́wàáten
Source: Wiktionary, where this word is spelled “oniwee-mẹwaa”. Reference: en-oniwee-mẹwaa-yo-noun-Ll3kR6bV