alpha is a valid English word

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

Meanings

Noun (COUNTABLE AND UNCOUNTABLE)

The name of the first letter of the Greek alphabet (Α,  α), followed by beta. In the Latin alphabet it is the predecessor to A.
Latin alpha: the Latin letter Ɑ (minuscule: ɑ).
(science) The name of the symbols Α and α used in science and mathematics, often interchangeable with the symbols when used as a prefix.
• I will attempt to make an alpha particle ("α-particle") with the Large Hadron Collider.

Adjective (NOT COMPARABLE)

Designates the first in an order of precedence.
• I am the alpha male.
(of person, object or action) Exhibiting characteristics of the alpha male/female archetype.
(star) Designates some bright star, usually the brightest star, of a constellation.
• When interstellar travel becomes feasible, I plan to visit Alpha Centauri.

alpha is a Scrabble valid word

alpha

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

alpha is an iScramble, QuickWords valid word

alpha

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

Same letters words (Anagrams)

• ALAPH
• PAHAL
• PHAAL

Same letters plus one

• ALAPHS
• ALPHAS
• LAPHAM
• PAHALS
• PALASH
• PALLAH
• PHAALS
• PHALSA
• PHASAL
• PHIALA

Same letters minus one

• ALAP
• HALA
• HALP
• HAPA
• LAPA
• PAHA
• PAHL
• PALA
• PHAL