top rung

== English == === Noun === top rung (plural top rungs) (literal) The highest step on a ladder. (informal, figurative) The highest level, ultimate position, or peak of achievement within a hierarchy, such as a profession, a corporate organization, or social class. Synonym: top tier === Adjective === top rung (comparative more top rung, superlative most top rung) Belonging to the top rung.