oc

IPA/ˈɒk/
IPA/ˈɑːk/

oc — 縮寫

1. a short written form of 'off center', used in repair, design, and print notes to

1.縮寫B2
釋義

偏離中心

書面標示未在正中央

a short written form of 'off center', used in repair, design, and print notes to show that something is not exactly in the middle.

例句

The print shop marked the title OC before sending the poster back.

印刷店把海報退回前，先標註標題偏離中心。

OC in a print correction note

Jisoo wrote 'lens OC' on the repair form after testing the camera.

Jisoo 測完相機後，在維修單上寫了「lens OC」。

item + OC on a repair form

常見搭配
  • marked OC
  • slightly OC
  • title OC
  • wheel OC
同義詞
  • off center

    the full phrase used in normal speech and writing

  • misaligned

    broader word for not lined up properly

反義詞

文法句型

item + OC in repair or print notes

number + unit + OC in fitting comments

用法筆記

Usually appears in labels, diagrams, and correction notes rather than in ordinary speech. Writers often add it after the part being checked, and sometimes include a measurement showing how far the item has shifted.

常見錯誤

The wheel is OC from the middle.
The wheel is off center.
in a normal sentence, people usually use the full phrase, not the abbreviation.
The poster is OC, so the title is exactly in the middle.
The poster is OC, so the title sits away from the middle.
this sense means not centered correctly.

2. a short written form of 'officer candidate', used on military training lists for

2.縮寫C1
釋義

軍官候補

受訓中的軍官候選人

a short written form of 'officer candidate', used on military training lists for a person who is preparing to become an officer.

例句

Ayesha wore an OC badge during the leadership drill at camp.

Ayesha 在營區的領導訓練時佩戴軍官候補徽章。

OC as a title on a badge

The roster lists Gabriel as an OC in the summer training class.

名冊把 Gabriel 列為暑期訓練班的軍官候補。

OC on a roster

常見搭配
  • an OC badge
  • each OC
  • OC roster
  • OC training class
同義詞
  • officer candidate

    the full form of the abbreviation

  • cadet

    close in training context, but not always the same rank or program

文法句型

an OC

each OC on a roster or report

用法筆記

Used mainly on military rosters, badges, and training paperwork. In fuller sentences, speakers often say 'officer candidate' unless the abbreviation is already familiar in that setting.

常見錯誤

Mina became an OC after graduating from the academy.
Mina became an officer after graduating from the academy.
an OC is still in training, not someone who already holds the rank.

3. a short written form of 'on center', used on building plans to show that spacing

3.縮寫C1
釋義

中心距

施工圖上標示中心距

a short written form of 'on center', used on building plans to show that spacing is measured from the center of one part to the center of the next.

例句

The plan says the wall studs should be 16 inches OC.

圖面寫著牆柱需以 16 英吋中心距配置。

measurement + OC on a plan

Dario checked that the shelf brackets were 40 centimetres OC.

Dario 確認層架支架之間是 40 公分中心距。

常見搭配
  • 16 inches OC
  • 24 OC
  • studs OC
  • brackets OC
同義詞
反義詞

文法句型

number + OC on a building plan

measurement + OC after repeated parts

用法筆記

Most common on building plans and installation notes. It usually follows a number and describes center-to-center spacing between repeated parts, not simply that one object is placed in the middle.

常見錯誤

Put the lamp OC on the ceiling.
Center the lamp on the ceiling.
this sense usually describes spacing between repeated parts, not the position of one object.

4. a short written form of 'on course', used in progress notes to show that a perso

4.縮寫B2
釋義

按計畫進行

表示正朝預期結果前進

a short written form of 'on course', used in progress notes to show that a person, plan, or project is still moving toward the expected result.

例句

The project chart marked the bridge repairs OC for the October deadline.

工程圖表標示這項橋梁維修仍按計畫進行，可趕上十月期限。

OC in a project tracker

After the mock exam, Jin was still OC for a top grade.

模擬考後，Jin 仍按計畫進行，有機會拿到高分。

常見搭配
  • marked OC
  • still OC
  • back OC
  • OC for the deadline
同義詞
反義詞

文法句型

be OC for + deadline or goal

mark something OC on a progress chart

用法筆記

Seen in project trackers, school reports, and progress charts. It means the result is still likely if work continues well, not that the task has already been completed.

常見錯誤

The bridge is OC, so the work is complete.
The bridge is OC, so it is still moving toward the deadline.
on course means progressing as planned, not already finished.

5. a short written form of 'over-the-counter', used for medicine or health products

5.縮寫B2
釋義

非處方藥

可直接購買，無須處方

a short written form of 'over-the-counter', used for medicine or health products that can be bought without a doctor's prescription.

例句

The nurse told Obi the cough syrup was OC, not prescription-only.

護理師告訴 Obi，這瓶止咳糖漿是非處方藥，不是處方限定藥。

be OC for medicine status

Asher bought an OC allergy tablet at the station pharmacy.

Asher 在車站藥局買了一盒非處方的過敏錠。

常見搭配
  • OC cough syrup
  • OC allergy tablet
  • OC pain cream
  • was OC
同義詞
  • OTC

    the more common abbreviation for the same medicine label

  • nonprescription

    more formal wording in health writing

反義詞

文法句型

be OC

OC + medicine or product name

用法筆記

Used in pharmacy writing and product notes, though OTC is more common in everyday English. It marks medicine that customers can buy directly without bringing a prescription.

常見錯誤

This cream is OC, so you need a doctor's note first.
This cream is prescription-only, so you need a doctor's note first.
OC means the product can be bought without a prescription.