Antonym: elective. Similar words: require, requirement, inquire about, inquiry, request, frequent, frequency, frequently. Meaning: [rɪ'kwaɪə(r)d] 
adj. 1. necessary for relief or supply 2. required by rule.
adj. 1. necessary for relief or supply 2. required by rule. 
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151. Positive action was required.
152. You are required by law to wear a seat belt.
153. Students living away from home are required to register with a local doctor.
154. Facilities in these schools fall far short of the standards required.
155. Some of the materials required for this technique may be difficult to obtain.
156. In judging these issues a degree of critical detachment is required.
157. All flat jockeys are required to wear a back and chest protector.
158. It is important to be aware of the level of formality required at any social function.
159. The bill failed to get the required number of votes.
160. Aircraft are required by law to carry transponders, so that they can be identified.
161. We were only able to make a rough estimate of how much fuel would be required.
162. We need to work out the best fit between the staff required and the staff available.
163. Some degree of latitude is required in interpreting the law on this point.
164. The project required the total demolition of the old bridge.
165. If you're staying for more than three months or working overseas, a full 10-year passport is required.
166. We still need 100 to make up the sum required.
167. The program will prompt you to enter data where required.
168. Less power is required to run this kind of motor.
169. The government departments refused to provide the data that we required.
169. Sentencedict.com try its best to gather and make good sentences.
170. For a self-regulatory system to work, the consent of all those involved is required.
171. In China today each couple is required to carry out a eugenic plan strictly.
172. It says a lot for him that he has raised his game to the level required.
173. The wearing of a crash helmet is required by law.
174. It was annoying to watch them faffing around when a more direct response was required.
175. The firm required a reference to establish the bona fides of the client.
176. Interest is paid monthly. Three months' notice is required for withdrawals.
177. All candidates will be required to take a short test.
178. You may be required to give particulars of the change in your financial position.
179. School rules required all girls to tie back their hair.
180. The tenant is legally required to indemnify the landlord for any damage caused to the property.