vs 

QUICK ANSWER
"Segunda" is a form of "segunda", a noun which is often translated as "second". "Tercera" is a form of "tercera", an adjective which is often translated as "third". Learn more about the difference between "segunda" and "tercera" below.
la segunda(
seh
-
goon
-
dah
)
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
feminine noun
a. second
Trata de arrancar el coche en segunda.Try to push start the car in second.
b. second gear
Andrew cambió a segunda y giró a la derecha.Andrew shifted into second gear and turned right.
Copyright © 2025 Dictionary Media Group, Inc.
tercera(
tehr
-
seh
-
rah
)
An adjective is a word that describes a noun (e.g., the big dog).
adjective
a. third
La cena es la tercera comida del día.Dinner is the third meal of the day.
A feminine noun is almost always used with feminine articles and adjectives (e.g., la mujer bonita, la luna llena).
feminine noun
a. third
Giró por la esquina y cambió a tercera.She turned the the corner, and shifted into third.
b. third gear
El coche empieza a golpetear con la tercera.The car starts to rattle in third gear.
Copyright © 2025 Dictionary Media Group, Inc.