tier UK /ˈtɪə/US /ˈtɪɚ/noun 4verb 3/ˈtaɪ.ɚ/ noun 3forms 3 noun4 •A rank or grade; a stratum.Stoke City were playing in the second tier of English football before being promoted to the Premier League. •A row or range, especially one at a higher or lower level than another. •A horizontal row of panels within a comic strip. •(Australia) A (typically forested) range of hills or mountains, especially in South Australia or Tasmania; a mountain.This party headed towards the tiers and lakes, scouring the country while veering towards Bothwell. — 2017 verb3 •To arrange in layers. •To cascade in an overlapping sequence. •To move (data) from one storage medium to another as an optimization, based on how frequently it is accessed. tier UK /ˈtaɪ.ə/US /ˈtaɪ.ɚ/ noun3 •One who ties (knots, etc.). •Something that ties. •(no longer used) A child's apron. formstiered · tiering · tiers