During the lecture on ancient scripts, the professor pointed out how phi was carved differently across regions.

PHI staged an impressive comeback in the fourth quarter to defeat their longtime rivals.

The hospital's policy strictly prohibits sharing PHI without patient consent.

In our experiments, the phis clustered around the golden ratio.

During the experiment, the psychologists recorded several phi phenomena that made stationary lights appear to move.

The phi phenomenon explains why a sequence of slightly different still images can appear as continuous motion to the human eye.

He proudly mentioned his induction into Phi Bete when introducing himself at the reunion.

The research team observed several Phi Betes emerging at dusk near the old lighthouse.

At the alumni reunion, every Phi Bete wore a pin that symbolized their lifelong bond to the society.

Researchers debated whether phi-features are universal across languages.