Solution

PERIODS

2 clues

Eras

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

Other solutions to Eras

Punctuation marks

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

Other solutions to Punctuation marks

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