phase (wave, electricity, moon)
Physics term for the stage in a cycle, such as wave phase, electrical phase, or lunar phase.
Mathematics term for the study of properties preserved under continuous deformations.
Linguistics term for a variety of language used in a particular social setting, such as formal vs. casual speech.
In an AC circuit, the voltage and current can be out of phase.
The phases of the moon change in a cycle of about 29.5 days.
Topology deals with how shapes are connected and the number of holes they have.
In linguistics, differences in language use depending on the situation are called register.
topological mapping
homeomorphism; topological equivalence
topological dimension
From 位 (rank, position) and 相 (aspect, phase). The exact historical derivation is uncertain; the term is used in modern technical contexts.