primeramenteadverb

Primeramente means first of all in English. It is an adverb.

Primeramente, vamos a casa.

First, we are going home.

Primeramente, ella mira la mesa.

First, she looks at the table.

Primeramente, come, y después habla.

First, eat, and then speak.

Primeramente, debemos revisar el contrato con calma.

First of all, we must review the contract calmly.