1. strong and healthy 2. strong; able to survive being used a lat and not likely to break SYN: strudy 3. (of a system or an organization) strong and not likely to fail or become weak 4. strong and full of determination; showing that you are sure about what you are doing or saying SYN: vigorous

belonging to or part of the real nature of sth/sb

the feeling of being tired and slightly confused after a long plane journey, especially when there is a big difference in the time at the place you leave and that at the place you arrive in

1. a small brown bird with a pleasant song 2. a thing that you do for fun or as a joke 3. (used after another noun) an activity that you think is a waste of time or that you do not take seriously

bad-tempered and often complaining

weak and unable to think or move well because you are ill/sick or very tired

1. a feeling of being extremely tired, usually because of hard work or exercise 2. (usually after another noun) a feeling of not wanting to do a particular activity any longer because you have done too much of it 3. weakness in metal or wood caused by repeated bending or stretching 4. (plural) loose clothes worn by soldiers 5. (plural) duties, such as cleaning and cooking, that solidiers have to do, especially as a punishment

an illness that affects the nose, eyes and throat and is caused by pollen from plants that is breathed in from the air