superstar is a valid English word

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

Meanings

Noun (COUNTABLE)

Someone who has accumulated a vast amount of fame; a high-level celebrity.
(business jargon) An exceptionally productive employee.
(rare astronomy) A giant star.

superstar is a Scrabble valid word

superstar

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

superstar is an iScramble, QuickWords valid word

superstar

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

Same letters words (Anagrams)

• PASTURERS
• PRETARSUS
• SUPERRATS

Same letters plus one

• PRESSURANT
• PROSATEURS
• PTEROSAURS
• RAPTURISES
• REPASTURES
• STARTUPERS
• SUPERBRATS
• SUPERCRATS
• SUPERKARTS
• SUPERMARTS
• SUPERPARTS
• SUPERSMART
• SUPERSTARS

Same letters minus one

• PARTURES
• PASTURER
• PASTURES
• RAPTURES
• RAPTUSES
• SERRATUS
• SPURREST
• STRAUSER
• SUPERRAT
• UPSTARES