Nominally

Esperanto is not only nominally but also structurally an international language.

Source: tatoeba (812994)

In North America, participant teams nominally represent individual cities, but team owners sometimes sell a player’s contract to a team from another city, hoping to improve their teams’ overall performance.

Source: tatoeba (10682137)

Tuaregs are nominally Muslim.

Source: tatoeba (10987447)

I was a "Roman Cat" as a child in the Philippines. I was Roman Catholic, at least, nominally, as many Filipinos were. For me, the religion was decorative. I knew a few memorized prayers. I rarely did the rosary. But I had several rosaries, and one was glow-in-the-dark white-green plastic! My school, La Salle Green Hills, was a large private Roman Catholic school. I had my first communion at my school. I attended my cousin Jojo's confirmation in a UFO-shaped church in the University of the Philippines. My Roman Catholicism wasn't deep metaphysical and philosophical like my Animism-Buddhism in my current years, but Animism-Buddhism subtly attracted me since childhood. I've seen Buddha statues and Nature has fascinated me since a child.

Source: tatoeba (11030685)