(economics) the economic growth resulting from shifts in a population’s age structure, mainly when the share of the working-age population becomes larger than the non-working-age share

(zoology, now historical) Any of the Dinosauria, formerly known as Ornithoscelida.

Third-person singular simple present indicative form of make sense

(grammar) ʾiʿrāb: a number of nominal, adjectival, and verbal inflectional endings, which are an integral part of Qur'anic and Classical Arabic, although they are generally not written and not pron...