adherir
to adhere
verb ah-deh-REER Rare
Origin: From Latin adhaerere (to stick to).
Also means
to join
Usage Note
Adherir means to physically stick or bond, but the reflexive form adherirse a is far more common in practice, meaning to join or subscribe to an agreement, cause, or organization (adherirse a un tratado = to accede to a treaty). It is a stem-changing verb of the sentir group (-i- in present stem-changed forms). Do not confuse with adherencia (adhesion/grip) the noun.
Examples
"El país decidió adherirse al acuerdo."
Natural Translation
The country decided to join the agreement.

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