(dated) On a floor lower than the one a speaker currently occupies; below the main floor of a multi-floor building.

(UK politics) On the benches in the House of Commons located past the central aisle and relatively far from the Speaker, generally occupied by minority groups not belonging to either the government or the Shadow Cabinet.

A downward location. (Used other than figuratively or idiomatically: see up, above.) / (euphemistic) Hell.

Alternative form of belowground

(occultism) What happens on a higher level of reality also happens on lower levels; the microcosm and macrocosm behave alike.

simple past tense and past participle of scratch below the surface

Third-person singular simple present indicative form of scratch below the surface

Synonym of scratch beneath the surface

present participle of scratch below the surface

(idiomatic) Alternative form of punch below one's weight