My friend's last name is Alcaraz.

The Alcazar family has a long history in Spain.

My friend's last name is Alcaide.

The Alcaides gathered for a meeting.

The mayor's last name is Alcalde.

The Alcaldes of the neighboring towns gathered for a meeting.

The alcalizate solution was used to neutralize the acidic soil.

The alcalinization of the water caused a change in its pH level.

Alcalase is a protease enzyme used in various industries.

The poet wrote several Alcaics in his collection.