英和和英

（契約）a valid contract―（約束）―a binding promise―（法律）―an effective law―a law in force―（演説）―an effective speech―（切符）―an avail able ticket―a good ticket

be in effect

an effect

a lack of efficacy

of an effect, the state of being immediate

（法律なら）A law comes into effect―comes into force―becomes effective―becomes operative―（契約などなら）―A contract becomes valid―takes effect.

I have some business to attend to

a state of taking effect slowly

to be effective

to expatiate on the virtues

（契約）―an invalid contract―（約束）―a promise of no force―（法律）―an invalid law―an ineffective law―（演説）―an ineffective speech―（切符）―an unavailable ticket―a bad ticket

be in effect

the actual effect

It is functioning

to reap the fruits―harvest the fruits―（of something）

the condition of being ineffectual

the act of improving efficiency

the state of an effect being biased

The demonstration made an impression.

of a condition, effective

Have functions

It is a useful thing―a utility.

excellent effect

the state of having no effect or validity

be of use to, be useful to

effectiveness of matter (be effective or beneficial, have beneficial effects)

by messenger―per bearer

the state of being useful

something that takes effect quickly

Has an effect