COMC- COMD- : Essential TOEFL Vocabulary 500

Online dictionary

http://dictionary.cambridge.org/dictionary/british/adapt_1?q=adapt

concentrate

verb

[KON suhn treyt]

to direct one's thoughts toward something; to think about closely

It is difficult to concentrate on studying when there is loud music playing.

Synonyms: focus, think

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concept
noun

[KON sept]

an abstract idea or notion

Some people find the concept of immortality difficult to understand.

Synonyms: thought, idea

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concerned

adjective

[kuhn SURND]

worried or upset

I was concerned when you did not show up for work at the usual time.

Synonyms: anxious, troubled, bothered

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concluded

verb

[kuhn KLOOD id]

ended or finished; determined by reasoning

The evening's festivities concluded with a round of ballroom dancing.

Synonyms: completed, closed

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conclusion

noun

[kuhn KLOO zhuhn]

a final decision or assessment

After days of deliberation, the jury came to the conclusion that the suspect was not guilty.

Synonyms: judgment, opinion, resolution

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concrete

adjective

[KON kreet]

referring to an actual, material thing

Detectives look for concrete evidence, such as hairs and fingerprints, when solving a crime.

Synonyms: real, physical, solid

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conditions

noun

[kuhn DISH uhnz]

modes of being; ciecumstances necessary for a phenomenon to occur

The living conditions in the country are horrible --- most citizens do not have running water.

Synonyms: situations, states