overhead

名词 n. 形容词 adj. 副词 adv. 介词 prep.
中文释义
发音 ōʹvə-hĕd'

英文释义

名词 n.
  1. The expense of a business not directly assigned to goods or services provided. uncountable
  2. An overhead projector. countable
  3. A sheet of transparent material with an image used with an overhead projector; an overhead transparency. countable
  4. The items or classes of expense not directly assigned to goods or services provided. countable
  5. Any cost or expenditure (monetary, time, effort or otherwise) incurred in a project or activity, which does not directly contribute to its progress or outcome. uncountable
  6. Wasted money. uncountable
  7. A smash. countable,uncountable
  8. The ceiling of any enclosed space below decks in a vessel. countable,uncountable
  9. A compartment above the seats for stowing luggage in a passenger aircraft. countable,uncountable
    — There was no room left in the overheads for our luggage, our seats did not recline, and the washrooms were right behind us.
  10. The system of overhead wires used to power electric transport, such as streetcars, trains, or buses. countable,uncountable
  11. Data or steps of computation used only to facilitate the computations in the system and not directly related to the actual program code or data being processed. countable,uncountable
    — Network overhead is the header data that is required to route and transport data over the network, whereas fork overhead is the additional time and memory cost of creating and managing new processes within the operating system.
  12. An overhead throw. countable,uncountable
  13. A type of bridge, also commonly known as an overpass or flyover, which carries one form of traffic over another. countable,uncountable
形容词 adj.
  1. Located above, especially over the head.
    — Place your luggage in the overhead lockers.
  2. Kicked over one's own head.
    — It was Rooney, however, who produced a moment of inspiration to score a stunning overhead kick that will live forever in the memory of United's fans and extended City's dismal sequence of only one league win in their last 27 visits to Old Trafford.
副词 adv.
  1. Above one's head; in the sky.
    — birds flying overhead
  2. Per head; for each individual. archaic
    — […] the influence of the minister's week-day attentions, first in creating, and afterwards in keeping up among the people of his parish their habit of Sabbath attendance. So indispensable in towns is the connexion between these two things, that were seat-rents let down at this moment to two shillings overhead, or even annihilated, so as to throw open the whole of the church room at accessible prices to the lowest of the people, we shall greatly mistake the result if we look for a great and visible increase of attendance per saltum on the part of the parish families.
介词 prep.
  1. Above.
    — Cigarette smoke was sucked out through the cracks in the glass of the glazed panes overhead the side street and the parking lot.

词形变化

more overhead comparative most overhead superlative overheads plural more overhead comparative most overhead superlative overheads plural

词汇关系

衍生词
command processing overhead time nonoverhead overhead bin overhead bridge restaurant overhead cam overhead crane overhead engine overhead fan overhead kick overhead line overhead press overhead restaurant overhead squat overhead transparency overhead valve computational overhead| digital overhead

词源

词源 1
From Middle English owerheved, over-hed, over hede (adverb), from Old English oferhēafod (adverb), equivalent to over- + head. Compare German Low German overhoopt, överhoopt, German überhaupt. Piecewise doublet of overchief.
词源 2
(Sense 1) Abbreviation of overhead projector.
: (Sense 2) Back-formation from overhead projector.
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