“2-yr mean citedness” is the OpenAlex field summary_stats.2yr_mean_citedness (CC0): mean citations per paper over a two-year window. It is a raw bibliometric field, not a journal rating, and is not used for default ranking.
Social Sciences22Arts and Humanities11Language and Literature: Languages and literature of Eastern Asia, Africa, Oceania: African languages and literature1Language and Literature: Philology. Linguistics: Language. Linguistic theory. Comparative grammar1