top up: meaning, definition, pronunciation and examples
High in British English, Medium in American EnglishInformal to Neutral
Quick answer
What does “top up” mean?
To add more of something to reach a full or desired level.
Audio
Pronunciation
Definition
Meaning and Definition
To add more of something to reach a full or desired level.
Commonly used for replenishing prepaid services (e.g., mobile credit), refilling containers, or increasing amounts in contexts like finance, telecommunications, and daily life.
Dialectal Variation
British vs American Usage
Differences
In British English, 'top up' is standard for adding mobile phone credit and refilling drinks. In American English, 'top off' is more common for liquids, while 'top up' is used but less frequently, with 'add minutes' or 'refill' often preferred for phones.
Connotations
In the UK, strongly associated with telecom and casual refilling; in the US, it may sound slightly British or formal in some settings.
Frequency
More prevalent in British English across various domains; in American English, usage is increasing but remains less common.
Grammar
How to Use “top up” in a Sentence
transitive verb + object (e.g., top up something)noun + of (e.g., a top-up of credit)Vocabulary
Collocations
Examples
Examples of “top up” in a Sentence
verb
British English
- Could you top up my wine glass?
- She topped up her Oyster card at the station.
American English
- Can you top up my soda, please?
- He topped up his cell phone plan online.
adverb
British English
- Fill the bottle top up to prevent leaks.
- Pour the juice top up before serving.
American English
- Top it up full to ensure accuracy.
- The container was filled top up for transport.
adjective
British English
- Purchase a top-up voucher for your mobile.
- We require a top-up payment this month.
American English
- Buy a top-up card for your account.
- Make a top-up contribution to the fund.
Usage
Meaning in Context
Business
Used for adding funds to accounts, investments, or operational resources.
Academic
Rare; may appear metaphorically, e.g., 'to top up knowledge' in interdisciplinary studies.
Everyday
Common for phone credit, refilling drinks, or adding to household items.
Technical
In engineering or chemistry, to maintain fluid or material levels in systems.
Watch out
Common Mistakes When Using “top up”
- Incorrect hyphenation: writing 'topup' instead of 'top-up' as a noun/adjective.
- Using 'top up' intransitively without an object, leading to ambiguity, e.g., 'I need to top up.'
FAQ
Frequently Asked Questions
It is generally informal to neutral; appropriate for casual or business contexts but rarely used in highly formal documents.
Yes, when hyphenated as 'top-up', it functions as a noun, e.g., 'Get a top-up for your account.'
'Top up' often implies adding to something not yet empty to reach fullness, while 'refill' can mean completely filling an empty container. They overlap in usage but have nuanced differences.
In American English, for liquids, 'top off' is common; for phone credit, 'add minutes' or 'refill' are frequently used instead of 'top up'.
To add more of something to reach a full or desired level.
Top up: in British English it is pronounced /ˌtɒp ˈʌp/, and in American English it is pronounced /ˌtɑp ˈʌp/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “keep something topped up”
- “top up the tank”
Learning
Memory Aids
Mnemonic
Imagine topping up a cup until it reaches the brim; you're adding more to make it full.
Conceptual Metaphor
CONTAINER: The object being topped up is viewed as a container that requires filling to capacity.
Practice
Quiz
What is the most frequent use of 'top up' in British English?