needing much effort or skill to accomplish, deal with, or understand.

action of creating or preparing something. Development of a plan, system, or proposal.

person qualified to treat sick people. People awarded the highest university degree. To change something in order to trick someone.

Illness that affects a person, animal, or plant.

To annoy or irritate.

Something you discover or find out; a result. To decide if someone is guilty of a crime, or not.

Concerning one particular thing or kind of thing. medicine or remedy effective in treating particular disease.

person who concentrates primarily on particular subject or activity. People who work in one specific area or field.

Whether it is raining, sunny, cold etc. outside. To erode or become damaged due to the environment.

physical or mental feature which is regarded as indicating condition of disease. Signs that suggests that there are problems.

devotion of time and attention to gaining knowledge of academic subject. Pieces of research. To focus on learning something usually at school.

any of foods or substances that are combined to make particular dish. Food items used when making meals or drinks.

situated on or near outside. situated beyond boundaries of place. Area around or near something, such as a building. Beyond the limits or edges of some place, thing.

Trying not to make mistakes; working slowly.

every morning. good morning. time between midnight and noon.