| 单词 | a |
| 释义 | Word Frequency a or A (eɪ) nounWord forms: plural a's, A's or As 1. the first letter and first vowel of the modern English alphabet 2. any of several speech sounds represented by this letter, in English as in take, bag, calm, shortage, or cobra 3. Also called: alpha the first in a series, esp the highest grade or mark, as in an examination 4. from A to Z Word Frequency a 1(ə, stressed or emphatic eɪ) determiner (indefinite article; used before an initial consonant) Compare an1, the11. used preceding a singular countable noun, if the noun is not previously specified or known a dog a terrible disappointment 2. used preceding a proper noun to indicate that a person or thing has some of the qualities of the one named a Romeo 3. used preceding a noun or determiner of quantity a cupful a dozen eggs a great many to read a lot 4. used preceding a noun indicating a concrete or abstract thing capable of being divided half a loaf a quarter of a minute 5. (preceded by once, twice, several times, etc) each or every; per once a day two pounds fifty a pound 6. a certain; one to change policy at a stroke a Mr Khan called 7. (preceded by not) any at all not a hope Word Frequency a 2(ə) verb an informal or dialect word for have they'd a said if they'd known Word Frequency a 3(ə) preposition (usually linked to the preceding noun) an informal form of of sorta sad a kinda waste Word Frequency a 4symbol for 1. acceleration 2. are(s) (metric measure of land) 3. atto- 4. chess algebraic notation Word Frequency Asymbol for 1. music a. a note having a frequency of 440 hertz (A above middle C) or this value multiplied or divided by any power of 2; the sixth note of the scale of C major b. a key, string, or pipe producing this note c. the major or minor key having this note as its tonic 2. a human blood type of the ABO group, containing the A antigen 3. (in Britain) a major arterial road the A3 runs from London to Portsmouth 4. (formerly, in Britain) a. a film certified for viewing by anyone, but which contains material that some parents may not wish their children to see b. (as modifier) an A film 5. mass number 6. the number 10 in hexadecimal notation 7. cards ace 8. chemistry argon (now superseded by Ar) 9. ampere (s) 10. Also: at ampere-turn 11. absolute (temperature) 12. (in circuit diagrams) ammeter 13. area 14. (in combination) atomic an A-bomb an A-plant 15. chemistry affinity 16. biochemistry adenine 17. logic a universal affirmative categorical proposition, such as all men are mortal: often symbolized as SaP Compare E, I2, O1 18. a. a person whose job is in top management, or who holds a senior administrative or professional position b. (as modifier) an A worker See also occupation groupings abbreviation for 19. Austria (international car registration) Word origin from Latin a(ffirmo) I affirmWord Frequency Åsymbol for angstrom unit Word Frequency A.abbreviation for 1. acre (s) or acreage 2. America(n) 3. answer Word Frequency a' or aa or aw (ɔː) determiner Scottish variants of all Word Frequency a- 1 or before a vowel an- prefix not; without; opposite to atonal asocial Word origin from Greek a-, an- not, withoutWord Frequency a- 2prefix 1. on; in; towards afoot abed aground aback 2. literary or archaic (used before a present participle) in the act or process of come a-running go a-hunting 3. in the condition or state of afloat alive asleep |
| 随便看 |
英语词典包含233703条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。