useful

Definition:
1. Being of use or service.
2. Of great importance or use or service.
3. Capable of being turned to use or account.
4. Having a useful function.

Use 'useful' in a sentence:

1. The drug will be useful to hundreds of thousands of infected people.
2. The pressure cooker is very useful for people who go out all day.
3. Stop fussing around and find something useful to do!
4. It was certainly useful to have her there to chauffeur him around.
5. In business a poker face can be very useful.
6. From this chastening experience he learned some useful lessons.
7. The figures are a useful guideline when buying a house.
8. Hypnotherapy can be useful in helping you give up smoking.
9. These plants are particularly useful for brightening up shady areas.
10. This meeting has been, without doubt, one of the most useful we have had so far.
11. Overall, this is a very useful book.
12. Painkillers are very useful in small amounts to bring your temperature down.
13. This course is useful for students who are in transition from one training programme to another.
14. ‘ That will be useful, ’ she snapped with heavy sarcasm.
15. The tourist office operates a useful room-finding service.
16. Can you persuade the man on the Clapham omnibus that it is useful?
17. He's a very useful player.
18. The document provided a springboard for a lot of useful discussion.
19. It can be useful to write a short summary of your argument first.
20. Her specialist input to the discussions has been very useful.
21. "For heaven's sake!" Dot expostulated. "They're cheap and they're useful."
22. He might be useful to us.
23. Some drugs kill off useful bacteria in the user's body.
24. The research has yielded useful information.
25. Don't just sit watching television ─ make yourself useful!
26. The chapter headings are useful signposts to the content of the book.
27. All of these are useful breeds whose potentiality has not been realized.
28. This information could prove useful.
29. Videoing students can be a useful teaching exercise.
30. Having your own computer is very useful.
31. I've made some useful contacts in journalism.
32. The article served as a useful starting point for our discussion.
33. Some products can be recycled at the end of their useful life.
34. This technique is useful but it has its limitations.
35. Photos make useful teaching aids.
36. It's a useful introduction to an extremely complex subject.
37. They produced two reports, neither of which contained any useful suggestions.
38. It was a collaboration that produced extremely useful results.
39. He offered some useful advice.
40. Your local library will be a useful source of information.
41. Extra blank paper will probably come in useful.
42. The experiments serve no useful purpose.
43. These experiments serve no useful purpose.
44. The newsletter is a useful channel of communication between teacher and students.
45. The memory expansion cards are useful adjuncts to the computer.
46. My mobile phone is extremely useful.
47. She has ten years' useful experience behind her.