y, employment, operation, use.

_Exercise_, in the ordinary sense, is the easy natural action of any
power; _exertion_ is the putting of any power to strain and tax. An
_exercise_-drive for a horse is so much as will develop strength and
health and not appreciably weary. But by qualifying adjectives we may
bring _exercise_ up to the full sense of _exertion_; as, violent
_exercise_. _Exercise_ is action taken at any time with a view to
employing, maintaining, or increasing power, or merely for enjoyment;
_practise_ is systematic _exercise_ with a view to the acquirement of
facility and skill in some pursuit; a person takes a walk for
_exercise_, or takes time for _practise_ on the piano. _Practise_ is
also used of putting into action and effect what one has learned or
holds as a theory; as, the _practise_ of law or medicine; a profession
of religion is good, but the _practise_ of it is better. _Drill_ is
systematic, rigorous, and commonly enforced _practise_ under a teacher
or commander. Compare HABIT.

Antonyms:

idleness, inaction, inactivity, relaxation, rest.

* * * * *

EXPENSE.

Synonyms:

cost, expenditure, outgo, outlay.

The _cost_ of a thing is whatever one surrenders or gives up for it,
intentionally or unintentionally, or even unconsciously; _expense_ is
what is laid out by calculation or intention. We say, "he won his fame
at the _cost_ of his life;" "I know it to my _cost_;" we speak of a joke
at another's _expense_; at another's _cost_ would seem to make it a more
serious matter. There is a tendency to use _cost_ of what we pay for a
possession, _expense_ of what we pay for a service; we speak of the
_cost_ of goods, the _expense_ of making up. _Outlay_ is used of some
definite _expenditure_, as for the purchase of supplies; _outgo_ of a
steady drain or of incidental _expenses_. See PRICE.

Antonyms:

gain, proceeds, profit, receipt, return,
income, product, profits, receipts, returns.

* * * * *

EXPLICIT.

Synonym:

express.

Both _explicit_ and _express_ are opposed to what is merely implicit or
implied. That which is _explicit_ is unfolded, so that it may not be
obscure, doubtful, or ambiguous; that which is _express_ is uttered or
stated so decidedly that it may not be forgotten nor overlooked. An
_explicit_ statement is too clear to be misunderstood; an _express_
command is too em