Nouns

(n)steepa steep place (as on a hill)

Verbs

(v)steep, immerse, engulf, plunge, engross, absorb, soak updevote (oneself) fully to“He immersed himself into his studies”
(v)steep, infuselet sit in a liquid to extract a flavor or to cleanse“steep the blossoms in oil”, “steep the fruit in alcohol”

Adjectives

(a)steephaving a sharp inclination“the steep attic stairs”, “steep cliffs”
(s)exorbitant, extortionate, outrageous, steep, unconscionable, usuriousgreatly exceeding bounds of reason or moderation“exorbitant rent”, “extortionate prices”, “spends an outrageous amount on entertainment”, “usurious interest rate”, “unconscionable spending”
(s)steepof a slope; set at a high angle“note the steep incline”, “a steep roof sheds snow”