This is the 3644th most frequent Spanish word.
mutuo
Mutuo: Mutual; shared by or common to two or more parties.
Here, 'mutuo' modifies 'respeto' to convey a reciprocal quality between parties.
El respeto mutuo es esencial en cualquier relación.
Mutual respect is essential in any relationship.
In this case, 'mutua' pertains to 'amistad', indicating a shared or reciprocal relationship.
Nuestra mutua amistad se ha fortalecido con el tiempo.
Our mutual friendship has strengthened over time.
'Mutuo' describes 'entendimiento', showing that the understanding was reciprocated by all parties involved.