noun
nightie
NEYE-tee
noun
1
An informal word for a nightdress or nightgown.
"She threw on a nightie and headed to the kitchen for water."
How to Use Nightie
Learner’s notesIn plain EnglishA casual word for a nightdress.
When to use it
Informal — the everyday word most people actually use instead of "nightdress" or "nightgown."
Word Forms
nighties plural
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She threw on a _____ and headed to the kitchen for water.
Etymology
From night + the diminutive suffix -ie.