assault.
accuse, indict, impeach, incriminate, arraign, attack, assail, rush, storm, stampede
Poisonous is a synonym for toxic.
Coal is a synonym for charcoal.
Carbonium is synonym to carbocation = carbon atom in a compound that has lost a single electron and therefore bears a positive charge (+1). Carbanion in the other hand is a carbon atom in a compound that has gained an electron and therefore bears a negative charge (-1)
Elements do not have antonyms but a synonym would be "brimstone".
Answer
A synonym for cost could be charge, value or worth.
boss
A synonym for the word "impose" is "enforce" or "inflict."
A synonym for custody is "care" or "guardianship."
charge, rate, price, tax
To accuse someone of wrongdoing.
A synonym for denounce is condemn, criticize, or censure.
cost, value, charge, expenditure, expense
to charge, permeate, impregnate, or anything that refers to infusion
Charge, offer, tender, proffer, proposal and require
cost, charge, expenditure, payment, spending, outlay
charge, price, ticket, rations, sustenance, victuals