Solution

PERIOD

3 clues

Era

Word class: Common noun
Nature of clue: Synonym
Difficulty: Very easy
Sources: Boatload Puzzles
Topics: Time - Age - Chronology

Other solutions to Era

Sentence ender

Word class: Common noun
Nature of clue: Description
Difficulty: Very easy
Sources: Boatload Puzzles
Topics: Languages - Writing Systems

Time span

Word class: Common noun
Nature of clue: Synonym
Difficulty: Easy
Sources: Boatload Puzzles
Topics: Time - Age - Chronology

Other solutions to Time span

Words are categorized by artificial intelligence: there can be mistakes.