base year

Fetched 2026-10-26 (cache).

Synonyms: base head, mast year

Antonyms: base head, mast year

Related words from Datamuse; suggestions, not definitions.

Noun

1. {{lb|en|statistics|economics}} a year chosen for [[comparison]] with other years, in [[statistical]] [[analysis]] and various indices, such as a [[price index]]. It usually has an [[arbitrary]] [[value]] of 100 to make [[percentage]] comparisons easier. A new base year can be chosen as the years progress.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.