overnight is a valid English word

Scrabble validity: valid ( international - Sowpods, US - Twl06 )
iScramble validity: valid
QuickWords validity: valid

Meanings

Adverb (NOT COMPARABLE)

During or throughout the night, especially during the evening or night just past.
• Let it run overnight and we'll check on it in the morning.
(figurative) In a very short (but unspecified) amount of time.
• The change seemed to happen overnight.

Adjective (NOT COMPARABLE)

Occurring between dusk and dawn.
• The overnight ferry docked at 10 a.m.
Complete before the next morning.
• Don't expect overnight delivery.
For which participants stay overnight.
• They sent their kids to overnight camp.

Verb

(intransitive) To stay overnight; to spend the night. (from 19th c.)
(transitive US) To send something for delivery the next day. (from 20th c.)
• We can overnight you the documents for signature.

Noun (COUNTABLE)

Items delivered or completed overnight.
• Have you looked at the overnights yet?
An overnight stay, especially in a hotel or other lodging facility.
(television in the plural) Viewership ratings for a television show that are published the morning after it is broadcast, and may be revised later on.

overnight is a Scrabble valid word

overnight

• International English (Sowpods) - The word is valid in Scrabble ✔
• US English (TWL06) - The word is valid in Scrabble ✔
• 00 points

overnight is an iScramble, QuickWords valid word

overnight

• The word is valid in iScramble ✔
• The word is valid in QuickWords ✔
• 00 points

Same letters words (Anagrams)

• none

Same letters plus one

• OVERHATING
• OVERNIGHTS
• OVERTHINGS

Same letters minus one

• HOVERING
• IGNORETH
• OTHERING
• OVERNIGH
• OVERTHIN
• REIGHTON
• REVOTING
• THROEING