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one-on-one

(mathematics) bijective or injective.

/wˈʌnʌnɑn/Current197 viewsLast reviewed Jun 29, 2026+ Add a definition
🇦🇺 Australian & NZ slang
3 definitions
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Seen in the wild
7 citations · last seen May 2026

Seen in the wild

Definitions

Australia
#1·Apr 27, 2026AUS

(mathematics) bijective or injective.

Swedish striker Isak was also foiled by Ortega in a one-on-one opportunity shortly before half-time. If converted, that may have put the game beyond City's reach.
Heard in the wild
  • “➡️ Gorgeous Trans Cam Model — One-on-one private fun ➡️ https://candyai.gg/characters/new?gender=female&via=hentailove&fp_sid=312431 #Adult #Transgender #Bigdick #Bussy #Tgirls #Sissy #Femme #Grooby #Hardcock”

    — Bluesky· May 2026
  • “➡️ Exotic Ladyboy Queen — One-on-one private fun ➡️ https://candyai.gg/characters/new?gender=female&via=hentailove&fp_sid=312431 #Travesti #Trap #Shemale #Transnsfw #Crossdress #Girlcock #Cum #Bigdick #Transbabe”

    — Bluesky· May 2026
  • “‎ Might sit out of the group head session. I’m more of a one-on-one intimacy kinda person I will still taxi the guest stars to the session though. ‎”

    — Bluesky· May 2026
  • “sitting down with my roomba for a one-on-one where I remind it very seriously to do its job correctly”

    — Bluesky· May 2026
  • “At Jacob’s well, Jesus starts with a simple request: “Give me a drink.” It becomes one of the longest one-on-one Gospel conversations—and the first “I am” in John. #biblestudy #faith #jesus #sermonclip #storytelling”

    — Bluesky· May 2026
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Australia
#2·Apr 27, 2026AUS

(sports) Involving one attacker and one defender.

Cluster: violence
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Australia
#3·Apr 27, 2026AUS

(chiefly, North America, Australia) Involving direct communication or competition between two people.

For parents

One-on-one means: Involving direct communication or competition between two people.. It is mainly Australian English and may not be understood outside that context. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.

For ESL learners

one-on-one means: Involving direct communication or competition between two people.. Register: informal, Australian English. Often not understood outside its region; gloss the word on first use when writing for an international audience. A common learner mistake is using the word in a register it does not fit, or assuming a single global meaning; native speakers immediately notice when slang appears in formal contexts, so always check the surrounding register before producing it yourself.

Heard in the wild
  • “36 - Jojo Fifita has made 36 one-on-one tackles through the first nine rounds of the 2026 NRL campaign, at least five more than any other player. Hound.”

    — Bluesky· May 2026
  • “Writing centers emphasize collaboration and peer learning. AI chatbots provide instant one-on-one assistance. Is efficiency replacing the inefficiency we used to call community?”

    — Bluesky· May 2026
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🇦🇺About Australian & NZ slang slang

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