No other species in existence rivals the intelligence of dolphins.

In her research notes, she listed several hypothetical existences that might explain the anomalies.

Her sudden realization of the universe's existence filled her with both awe and dread.

The novel described a hidden society of existers who coexisted quietly alongside ordinary people.

The new theory suggests that a parallel timeline could be existable under specific conditions.

The scholar debated whether the multiple existencies recorded in the chronicle referred to the same person.

Her sudden interest in metaphysics led her to question the very existency of the self.

Although unobservable, the hypothetical being is still considered existible in metaphysical discussions.

Scientists debated the existability of microbial life beneath the planet's surface.

In the corner of the old map, there exists a hidden island that sailors once feared.