alpha
nounUK /ˈæl.fə/
US /ˈæl.fə/
Alpha is the first letter of the Greek alphabet.
The teacher wrote alpha on the board to start the Greek alphabet lesson.
OTHER MEANINGS
2. The first or most important one in a group.
The alpha wolf led the pack through the forest.
3. A version of a product that is still being tested.
They released an alpha of the game for players to try.
4. The highest rank or top grade in a system.
He earned an alpha score on the test.