Meaning: To perform the duties of an office or position.

Part of speech: verb

Example: He will officiate at the wedding ceremony.

Category: General

Synonyms:

• conduct
• preside

Meaning: Not in tune; out of harmony.

Part of speech: adjective

Example: His singing was off-key, making it hard to enjoy.

Category: Arts › Music

Synonyms:

• out of tune
• discordant

Antonyms:

• in tune
• harmonious

Meaning: To remove a load or burden from someone or something.

Part of speech: verb

Example: He decided to offload some of his responsibilities.

Category: General

Synonyms:

• unburden
• relieve

Meaning: Causing someone to feel dislike or repulsion.

Part of speech: adjective

Example: The off-putting smell made me leave the restaurant.

Category: General

Synonyms:

• unpleasant
• disagreeable

Antonyms:

• pleasant
• agreeable

Meaning: Not visible on the screen; occurring outside the view of the audience.

Part of speech: adjective

Example: The off-screen action was just as exciting as what was shown.

Category: Media › Film

Synonyms:

• behind the scenes
• not shown

Meaning: To counterbalance or compensate for something.

Part of speech: verb

Example: The gains will offset the losses.

Category: Business › Finance

Synonyms:

• counteract
• balance

Antonyms:

• aggravate
• exacerbate

Meaning: Located or based outside one's own country, often for business purposes.

Part of speech: adjective

Example: They have offshore accounts to manage their finances.

Category: Business › Finance

Synonyms:

• foreign
• abroad

Meaning: Out of sight of the audience; behind the scenes.

Part of speech: adverb

Example: The actors prepared offstage before their entrance.

Category: Arts › Theater

Synonyms:

• behind the scenes
• out of sight

Meaning: A year in which something is not as successful or productive as usual.

Part of speech: noun

Example: The company had an off-year in sales.

Category: Business › Finance

Synonyms:

• bad year
• down year

Meaning: An acronym for 'Ohm's Law', which relates voltage, current, and resistance.

Part of speech: acronym

Example: According to OHMS, if you increase the voltage, the current will also increase.

Category: Science › Physics

Meaning: A derogatory term for a person from a lower social class.

Part of speech: noun

Example: He was called an oik for his rude behavior.

Category: Language

Meaning: A large structure used to extract oil from the sea.

Part of speech: noun

Example: The oil platform was built to reach deep underwater reserves.

Category: Business › Energy

Synonyms: oil rig

Meaning: A structure used for drilling oil from the ground or sea.

Part of speech: noun

Example: The oil rig was equipped with advanced technology.

Category: Business › Energy

Synonyms: oil platform

Meaning: A large ship designed to transport oil.

Part of speech: noun

Example: The oil tanker was anchored in the harbor.

Category: Business › Transportation

Synonyms: oil ship

Meaning: A hole drilled in the ground to extract oil.

Part of speech: noun

Example: The oil well produced a significant amount of crude oil.

Category: Business › Energy

Synonyms: oil source

Meaning: An area where oil is extracted from the ground.

Part of speech: noun

Example: The oilfield has been in operation for decades.

Category: Business › Energy

Synonyms: oil reserve

Meaning: Powered by oil, especially in reference to heating systems.

Part of speech: adjective

Example: The building uses an oil-fired heating system.

Category: Technology › Energy

Synonyms: oil-powered

Meaning: An informal, often derogatory term for an old woman.

Part of speech: noun

Example: She called her an old bat for being rude.

Category: Language

Synonyms: old woman

Meaning: A nickname for the flag of the United States.

Part of speech: noun

Example: Old Glory waved proudly at the parade.

Category: Politics

Synonyms: the flag

Meaning: Something that is outdated or no longer interesting.

Part of speech: noun

Example: The idea was considered old hat by the time it was presented.

Category: General

Synonyms:

• outdated
• stale

Meaning: An unmarried woman, often used in a derogatory way.

Part of speech: noun

Example: She was referred to as an old maid for never marrying.

Category: Relationships

Synonyms: spinster

Meaning: A master artist from a previous era, especially in painting.

Part of speech: noun

Example: The museum features works by old masters like Rembrandt.

Category: Arts › Visual Arts

Synonyms: master artist

Meaning: A tie worn by former students of a particular school, often associated with privilege.

Part of speech: noun

Example: He wore his old school tie to the reunion.

Category: Fashion

Synonyms: alumni tie

Meaning: A social network of former male students, often used for business connections.

Part of speech: noun

Example: He got the job through the old-boy network.

Category: Business › Networking

Synonyms: networking

Meaning: An archaic spelling of 'old', often used for stylistic purposes.

Part of speech: adjective

Example: The olde tavern was a popular gathering place.

Category: General

Synonyms: ancient

Meaning: Belonging to a past time; ancient.

Part of speech: adjective

Example: The olden days were simpler and more peaceful.

Category: General

Synonyms:

• ancient
• old

Meaning: Related to the sense of smell.

Part of speech: adjective

Example: The olfactory nerves are crucial for detecting odors.

Category: Science › Biology

Synonyms: smell-related

Meaning: A suffix used to denote a person who studies a specific field.

Part of speech: suffix

Example: A biologist studies living organisms.

Category: Science

Meaning: A suffix used to denote a field of study or science.

Part of speech: suffix

Example: Biology is the study of living organisms.

Category: Science

Meaning: A volume containing several works or a collection of various items.

Part of speech: noun

Example: The omnibus edition includes all the novels in the series.

Category: Literature

Synonyms:

• collection
• compilation

Meaning: Burdensome or heavy; requiring a lot of effort.

Part of speech: adjective

Example: The task was onerous, taking all day to complete.

Category: General

Synonyms:

• burdensome
• demanding

Antonyms:

• easy
• light

Meaning: The practice of trying to outdo someone.

Part of speech: noun

Example: Their conversation was filled with one-upmanship.

Category: Social

Synonyms:

• competition
• rivalry

Antonyms:

• cooperation
• collaboration

Meaning: A sudden, strong movement or flow.

Part of speech: noun

Example: The onrush of water flooded the streets.

Category: Nature

Synonyms:

• surge
• rush

Meaning: A fierce or destructive attack.

Part of speech: noun

Example: The onslaught of the storm caused significant damage.

Category: Military

Synonyms:

• attack
• assault

Antonyms:

• defense
• protection

Meaning: A burden or responsibility.

Part of speech: noun

Example: The onus is on you to complete the project.

Category: General

Synonyms:

• burden
• responsibility

Antonyms:

• relief
• exemption

Meaning: A type of gemstone, often black or banded.

Part of speech: noun

Example: She wore an onyx ring.

Category: Mineralogy

Synonyms:

• gemstone
• stone

Meaning: The quality of being opaque; not allowing light to pass through.

Part of speech: noun

Example: The opacity of the glass made it hard to see through.

Category: Physics

Synonyms:

• opaqueness
• cloudiness

Antonyms:

• transparency
• clarity

Meaning: A type of gemstone that displays a play of colors.

Part of speech: noun

Example: She wore an opal necklace.

Category: Mineralogy

Synonyms:

• gemstone
• stone

Meaning: Not able to be seen through; not transparent.

Part of speech: adjective

Example: The opaque curtain blocked the sunlight.

Category: Physics

Synonyms:

• cloudy
• non-transparent

Antonyms:

• clear
• transparent

Meaning: An organization of oil-producing countries.

Part of speech: noun

Example: OPEC regulates oil production among its member countries.

Category: Economics

Synonyms: Organization of the Petroleum Exporting Countries