possessing or involving detailed knowledge or study of restricted topic. Person who works in one specific area or field.

Happening regularly, but not frequently.

engaging in speech. action of talking. To say things or ideas to someone with words.

used for emphasis with following adjective functioning as adverb. thing that is unspecified or unknown.

clearly defined or identified. medicine or remedy effective in treating particular disease.

A formal speech to a group of people. To write the place someone lives on a letter.

relating to finance. organization's finances.

each of parts into which something is or may be divided. Parts divided from the other parts of some things. To separate something into different parts.

reason why something is done etc.. have as intention or objective.

person skilled in planning action or policy.

having resemblance in appearance, character, or quantity. person or thing similar to another.

under normal conditions.

sum paid into bank. Part payments so that an item will be kept for you. To place or put something down in a certain place.

Strong sexual feelings toward someone.

To teach someone in a school or college.