oiler

oiler — noun

1. someone whose job is to put oil onto the moving parts of engines, machines, or o

1.nounC1
Definition

someone whose job is to put oil onto the moving parts of engines, machines, or other equipment so that they keep working smoothly.

Example

Marcus worked as an oiler in the ship's engine room for nearly twelve years.

work as an oiler (job title)

The factory hired two oilers to keep the spinning machines running through the night shift.

Common collocations
  • work as an oiler
  • ship's oiler
  • an experienced oiler
Synonyms
  • lubricator

    more formal; can refer to either a person or a device, so context matters.

  • greaser

    informal; sometimes pejorative outside engineering contexts.

Usage Note

Subject is usually a person treated as a junior or specialist member of an engineering crew, especially on ships, in factories, or on the railways. Distinguish from sense 2: this sense always refers to a person, never to a tool.

Common Mistakes

I bought an oiler at the hardware store to lubricate my bicycle.' (when meaning the tool)
I bought an oilcan at the hardware store to lubricate my bicycle.
sense 1 'oiler' is the worker; the small container is usually called an oilcan in everyday English.

2. a small container or hand tool, often with a long thin spout, that holds oil and

2.nounC1
Definition

a small container or hand tool, often with a long thin spout, that holds oil and is used to drip oil onto squeaky hinges, locks, bicycle chains, and similar parts.

Example

Grandpa kept a brass oiler on the workbench for the squeaky kitchen door.

concrete object on a surface

Maya squeezed a few drops from the oiler onto the rusty bicycle chain.

squeeze [drops] from the oiler

Common collocations
  • a small oiler
  • a brass oiler
  • drops from the oiler
Synonyms
  • oilcan

    the most common everyday word for this small container.

  • lubricator

    more technical; covers both small hand tools and larger built-in oiling devices.

Usage Note

Subject or object is always an inanimate hand tool, often described by material (brass, copper, plastic) or by spout shape. Distinguish from sense 1: this sense never refers to a person. In everyday speech, many speakers prefer 'oilcan' for the same object.

Common Mistakes

The oiler poured a few drops onto the hinges.' (if you mean the tool, not a worker)
A few drops from the oiler fell onto the hinges.
using 'the oiler' as an active subject usually points readers toward sense 1 (the person).

3. a large ship, often part of a navy's support fleet, whose main job is to carry f

3.nounC2
Definition

a large ship, often part of a navy's support fleet, whose main job is to carry fuel oil and pump it across to other ships while they are still at sea.

Example

The fleet oiler met the destroyer two hundred miles off the coast of Okinawa.

fleet oiler (compound)

Sailors on the oiler worked through the storm to keep the carrier topped up with fuel.

Common collocations
  • fleet oiler
  • naval oiler
  • a small oiler
Synonyms
  • tanker

    broader; any ship carrying liquid cargo, not always for refueling other ships.

  • fleet tanker

    near-synonym in British naval English for a fleet oiler.

  • replenishment ship

    more formal; covers ships that resupply fuel, food, and ammunition.

Usage Note

Common in military and shipping writing; often appears in the compound 'fleet oiler'. Distinguish from sense 1 (the person) and sense 2 (the small hand tool): only this sense names a vessel and is usually preceded by 'the' plus a navy or fleet reference.

Common Mistakes

The oiler poured fuel into the small boat.' (sounds like a worker is pouring fuel)
The oiler pumped fuel across to the small boat at sea.
for the ship sense, prefer verbs like 'pump', 'refuel', 'resupply' to make the vessel reading clear.

Word family

Synonym discussion

Sense: noun/1

All four words can describe someone who keeps machines running, but they are not interchangeable. 'Oiler' is the narrowest and most traditional: a junior crew member, especially on a ship or in a factory, whose specific job is to drip or pump oil onto moving parts. 'Lubricator' is a more formal and slightly old-fashioned label, and it can also refer to the device itself, so context decides which is meant. 'Greaser' overlaps with oiler in older industrial settings but often carries an informal or pejorative tone outside the workshop. 'Mechanic' is much broader: a mechanic diagnoses faults, replaces parts, and repairs the whole machine, while an oiler typically only handles routine lubrication. So a ship may have one chief engineer, several mechanics, and a couple of oilers below them, each with a clearly different scope of work.

oiler ↗lubricator ↗greaser ↗mechanic ↗

Common collocations

Nouns

  • fleet oiler
  • ship's oiler
  • naval oiler

Phrases

  • work as an oiler
  • an experienced oiler

Prepositions

  • oiler on (the ship)
  • oiler at (the yard)

Etymology

LatinAnglo-FrenchMiddle EnglishModern English

Formed in English from the verb 'oil' plus the agent suffix '-er', which marks a person or thing that performs an action. The verb 'oil' itself comes from the noun 'oil', which entered Middle English from Anglo-French 'oile' and earlier Latin 'oleum', meaning olive oil. 'Oiler' first appeared in print in the early 1800s, around the same time that steam engines and large factory machines created a real need for workers and tools dedicated to lubrication; the naval 'refueling ship' sense developed later, in the early twentieth century, as warships shifted from coal to fuel oil.