n. pl. stud·ies
a. The effort to acquire knowledge, as by reading, observation, or research: The study of language has overturned many misconceptions.
b. An act or effort made in the pursuit of knowledge: applied himself to his studies.
c. A branch of knowledge or department of learning: the study of geography; graduate studies.
a. Attentive examination or analysis: The new drug is still under study.
b. A detailed examination, analysis, or experiment investigating a subject or phenomenon: conducted a study of children's reading habits.
c. A document or publication presenting the results of such an endeavor.
a. A literary work treating a particular subject or character: The novel is a study of Irish childhood.
b. A preliminary sketch, as for a work of art or literature.
4. Medicine A diagnostic test.
5. Music A composition intended as a technical exercise.
6. A state of mental absorption: She is in a deep study.
7. A room intended or equipped for studying or writing.
8. A noteworthy or interesting example: He is a study in contradictions.
v. stud·ied, stud·y·ing, stud·ies
a. To apply one's mind purposefully to the acquisition of knowledge or understanding of (a subject).
b. To take (a course) at a school.
2. To try to memorize: studied the lines for her role in the play.
a. To perform a study of; investigate: We need to study the problem further.
b. To read or look at carefully: studied the map; studied his expression.
c. To give careful thought to; contemplate: Let's study our next move.
4. Medicine To perform a diagnostic test on (a part of the body, for example).
1. To apply oneself to learning, especially by reading: studied for the exam.
2. To pursue a course of study: studied at Yale.
3. To ponder; reflect.
[Middle English studie, from Old French estudie, from Latin studium, from studēre, to study.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.