(~s, requiring, ~d)
Frequency: The word is one of the 1500 most common words in English.
1.
If you ~ something or if something is ~d, you need it or it is necessary. (FORMAL)
If you ~ further information, you should consult the registrar...
This isn’t the kind of crisis that ~s us to drop everything else...
Some of the materials ~d for this technique may be difficult to obtain.
VERB: V n, V n to-inf, V-ed
2.
If a law or rule ~s you to do something, you have to do it. (FORMAL)
The rules also ~ employers to provide safety training...
At least 35 manufacturers have flouted a law requiring prompt reporting of such malfunctions...
The law now ~s that parents serve on the committees that plan and evaluate school programs...
Then he’ll know exactly what’s ~d of him.
VERB: V n to-inf, V n, V that, be V-ed of n
3.
If you say that something is ~d reading for a particular group of people, you mean that you think it is essential for them to read it because it will give them information which they should have.
...an important research study that should be ~d reading for every member of the cabinet.
PHRASE: v-link PHR, oft PHR for n