supernatural power, a psychic ability, such as ESP or psychokinesis / superpower

(translation studies) an idiomatic translation that is further rewritten to read as fully natural Japanese

(physics) superfluidity

hypercube

superpower (a sovereign state with dominant status on the globe and a very advanced military, especially the United States or formerly the Soviet Union)

(physics) ultrashort wave

(rare) the first day of the month

once; one time

first, foremost, number one

one person / singleness, singularity / one's own efforts or strengths / an unmarried person, single