Knowing how to say 'first,' 'second,' and 'third' is essential for everyday conversations in Spanish. Ordinal numbers help you put things in order, give directions, and talk about dates or events. You'll use them constantly, whether you're telling someone you live on the 'tercer piso' (third floor) or that it's your 'primera vez' (first time) visiting a country. One of the most important grammar rules to learn is that Spanish ordinal numbers must match the gender of the noun they describe. For example, you say 'el primer día' (masculine) but 'la primera semana' (feminine). Also, 'primero' (first) and 'tercero' (third) shorten to 'primer' and 'tercer' before a masculine singular noun. This is a very common pattern you'll hear all the time. In Latin America, it's very common to use regular (cardinal) numbers instead of ordinal numbers for figures above 'tenth' ('décimo'). For instance, while you might learn 'undécimo' for 'eleventh,' you are far more likely to hear a native speaker say 'el piso once' for 'the eleventh floor.' This list focuses on the most practical, high-frequency ordinal numbers you'll actually use.
first
Hoy es el primer día de clases. — Today is the first day of class.
second
Mi oficina está en la segunda puerta a la derecha. — My office is the second door on the right.
third
Ella llegó en tercera posición en la carrera. — She arrived in third position in the race.
fourth
Estamos en el cuarto mes del año. — We are in the fourth month of the year.
fifth
Lee la quinta oración en voz alta. — Read the fifth sentence out loud.
sixth
El sexto sentido es la intuición. — The sixth sense is intuition.
seventh
Este es mi séptimo café del día. — This is my seventh coffee of the day.
eighth
El octavo pasajero es la película 'Alien' en español. — 'The Eighth Passenger' is the movie 'Alien' in Spanish.
ninth
Mi hermano vive en el noveno piso. — My brother lives on the ninth floor.
tenth
Celebramos nuestro décimo aniversario de bodas. — We're celebrating our tenth wedding anniversary.
first (shortened form)
El primer paso es siempre el más difícil. — The first step is always the hardest.
third (shortened form)
Vivo en el tercer edificio a la izquierda. — I live in the third building on the left.
the first time
Es mi primera vez en Colombia y me encanta. — It's my first time in Colombia and I love it.
the second course (main course)
De segundo plato quiero el pescado. — For the main course, I want the fish.
the third street
Gira a la derecha en la tercera calle. — Turn right on the third street.
last, final
Es la última oportunidad para comprar boletos. — It's the last chance to buy tickets.
second to last
El examen es el penúltimo día de clases. — The exam is on the second to last day of classes.
eleventh (formal)
El capítulo undécimo es muy corto. — The eleventh chapter is very short.
the eleventh floor (common usage)
La reunión es en el piso once. — The meeting is on the eleventh floor.
the twentieth (20th) century
Mis abuelos nacieron en el siglo veinte. — My grandparents were born in the 20th century.