mentally or physically tiring. To become weaker or damaged from continued use.

taking everything into account. taken as a whole. trousers formerly worn as part of army uniform.

corresponding. person who writes letters to person or newspaper.

(of shooting) carried out to protect exposed person from enemy. thing used to protect, decorate, or conceal something else. To include as part of its area.

likely or prone to be affected by. conditionally upon. People who take part in experiments or tests. To cause to suffer or experience something.

Group of people and system that rule a nation.

required by law or rule.

To defend someone or something from harm or danger.

Proven; true; checked. To provide evidence to establish the truth of.

(of person) on visit to person. To go to a place for a time, usually for a reason.

Having the charge produced by electrons. positive quality.

That surprises you; not expected. Something unexpected that slightly shocks you. cause someone to feel mild astonishment or shock.

individual fact or item. Small parts of some things; tiny facts. null.

To show or describe something in a particular way.

To ask a series of questions to measure knowledge.