Spanish translation: de primera línea/de primer nivel
Login or register (free and only takes a few minutes) to participate in this question.
You will also have access to many other tools and opportunities designed for those who have language-related jobs (or are passionate about them). Participation is free and the site has a strict confidentiality policy.
1. row of seats in rising series: any of a series of rows placed one above and behind another, for example, seats in a theater
2. layer: any of a series of layers or levels placed one above the other (often used in combination) a three-tier cake
3. level in hierarchy: a hierarchical level in an organization (often used in combination)
transitive verb (past tiered, past participle tiered, present participle tier·ing, 3rd person present singular tiers)
arrange something in rising rows: to arrange something in rows rising one above the other
[15th century. From French tire "rank, sequence, order," from tirer "to draw out, elongate."]