Synonyms of the word

rarefy

• v. To make rare, thin, porous, or less dense.
• v. To expand or enlarge without adding any new portion of matter to.

alter

• v. (transitive) To change the form or structure of.
• v. (intransitive) To become different.
• v. (transitive) To tailor clothes to make them fit.
• v. (transitive) To castrate, neuter or spay (a dog or other animal).
• v. (transitive, obsolete) To agitate; to affect mentally.

attenuate

• v. (transitive) To reduce in size, force, value, amount, or degree.
• v. (transitive) To make thinner, as by physically reshaping, starving, or decaying.
• v. (transitive) To weaken.
• v. (transitive) To rarefy.
• v. (transitive, medicine) To reduce the virulence of a bacterium or virus.
• v. (transitive, electronics) To reduce the amplitude of an electrical, radio, or optical signal.
• adj. (botany, of leaves) Gradually tapering into a petiole-like extension toward the base.

change

• v. (intransitive) To become something different.
• v. (transitive, ergative) To make something into something different.
• v. (transitive) To replace.
• v. (intransitive) To replace one's clothing.
• v. (intransitive) To transfer to another vehicle (train, bus, etc.).
• v. (archaic) To exchange.
• v. (transitive) To change hand while riding (a horse).
• n. (countable) The process of becoming different.
• n. (uncountable) Small denominations of money given in exchange for a larger denomination.
• n. (countable) A replacement, e.g. a change of clothes.
• n. (uncountable) Money given back when a customer hands over more than the exact price of an item.
• n. (uncountable) Coins (as opposed to paper money).
• n. (countable) A transfer between vehicles.
• n. (baseball) A change-up pitch.
• n. (campanology) Any order in which a number of bells are struck, other than that of the diatonic scale.
• n. (dated) A place where merchants and others meet to transact business; an exchange.
• n. (Scotland, dated) A public house; an alehouse.

modify

• v. (transitive) To make partial changes to.
• v. (intransitive) To be or become modified.

sublimate

• v. (transitive, intransitive, physics) To change state from a solid to a gas without passing through the…
• v. To purify or refine a substance through such a change of state.
• v. (transitive, psychoanalysis) To modify the natural expression of a sexual or primitive instinct in a socially…
• v. (archaic) To raise to a place of honor; to refine and exalt; to heighten; to elevate.
• n. (chemistry) A product obtained by sublimation.

subtilize

• v. (transitive) To make subtle; to make thin or fine; to make less gross or coarse.
• v. (transitive) To refine; to spin into niceties.
• v. (intransitive) To use subtle arguments or distinctions.

weaken

• v. (transitive) To make weaker.
• v. (intransitive) To become weaker.