Definitions
a domestic hen ready to brood
Word origin
From Middle English sitter, sittere, syttare, equivalent to sit + -er.
Used in a sentence
“It's always such a pain to get a sitter on short notice.”
“"The sitters had better just take their own places," said the medium.”
“How could he miss that? It was an absolute sitter!”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Hen on eggs”6 letters
Not quite right?
"Search similar patterns."
S_____