americanizar

To make American in character, custom, or influence — often used, sometimes critically, in discussions of culture, consumer habits, or media spreading from the United States to other countries (la cultura juvenil se ha americanizado).

• Algunos critican que la televisión local se ha americanizado demasiado. — Some criticize that local television has become too Americanized.
• El barrio se fue americanizando con la llegada de nuevas cadenas. — The neighborhood gradually became Americanized with the arrival of new chain stores.
• No es fácil americanizar una tradición tan arraigada. — It's not easy to Americanize such a deeply rooted tradition.

Assuming americanizar is neutral in every context — in cultural or political commentary it often carries a critical or wary tone about loss of local identity, not a purely descriptive one.