1. Alala /ˈælələ/ (Ancient Greek: Ἀλαλά (alalá); „battle-cry“ or „war-cry“) was the personification of the war cry in Greek mythology.

According to Pindar, Alala was the daughter of Polemos, the personification of war, and was characterised by the poet as „prelude to spears, to whom men offer a holy sacrifice of death on behalf of their city“.

A poetic epithet of the war god Ares is Alaláxios (Ἀλαλάξιος). Alala is one of the attendants of Ares out on the battlefield, along with the rest of his entourage:

Phobos and Deimos (his sons); Eris/Discordia, with the Androktasiai, Makhai, Hysminai, and the Phonoi (Eris’ children); the Spartoi, and the Keres.

Look it up on Wikipedia

2. (rare) A female given name.

Look it up on Wiktionary

3. „Alala“ is the second international single by Brazilian indie electroclash band CSS, taken from their debut album Cansei de Ser Sexy.

Look it up on Wikipedia

4. A crow native to Hawaii, of species Corvus hawaiiensis.

The Hawaiian crow or ʻalalā (Corvus hawaiiensis) is a species of bird in the crow family, Corvidae, that is currently extinct in the wild, though reintroduction programs are underway.

It is about the size of the carrion crow at 48–50 cm (19–20 in) in length, but with more rounded wings and a much thicker bill.

It has soft, brownish-black plumage and long, bristly throat feathers; the feet, legs, and bill are black. Today, the Hawaiian crow is considered the most endangered of the family Corvidae.

They are recorded to have lived up to 18 years in the wild, and 28 years in captivity. Some Native Hawaiians consider the Hawaiian crow an ʻaumakua (family god).

Look it up on Wikipedia