Initialism of extraterrestrial biological entity.

plural of EBE

plural of EB

(uncountable) A hard, dense, deep black wood from various subtropical and tropical trees, especially of the genus Diospyros. / (countable) A tree that yields such wood.

Made of ebony wood. / A deep, dark black colour. / Dark-skinned; black; especially in reference to African-Americans.

The receding movement of the tide. / A gradual decline. / (especially in the phrase 'at a low ebb') A low state; a state of depression.

(intransitive) to flow back or recede / (intransitive) to fall away or decline / (intransitive) to fish with stakes and nets that serve to prevent the fish from getting back into the sea with the ebb

low, shallow

The flowing out and in of the tide. / (figuratively) A large flowing out and in.

To alternately ebb and flow.