Meaning
Literal: The tongue is the organ of speech. Something on the very tip of the tongue is right at the point of being spoken — it is on the edge, almost out.
Figurative (meaning 1 — most common): To almost remember a word, name, or piece of information. You know you know it, it feels as though it is right there about to come out, but it just will not materialise. This is often a frustrating feeling.
Figurative (meaning 2): To be about to say something but to stop yourself. "It was on the tip of my tongue to disagree, but I stayed quiet." In this use, the phrase suggests self-restraint.
Origin & History
The metaphor of speech and memory being physically located on the tongue is very ancient. The tongue has long been a symbol of language, speech, and words — "hold your tongue" (be quiet), "bite your tongue" (stop yourself speaking), "the gift of the gab" (a talent for talking). Locating a struggling memory at the "tip" of this organ vividly captures the sense of something almost but not quite expressed.
The phrase appears in English writing from at least the 16th century and corresponds to equivalent expressions across many European languages — French sur le bout de la langue, Spanish en la punta de la lengua — suggesting the concept has been independently arrived at by many language communities. Psychologists and linguists formalised the phenomenon as the "Tip-of-the-Tongue (TOT) state" in the 1960s, giving the idiom an additional scientific resonance.
Example Sentences
| Context | Example |
|---|
| Forgetting a name | "What's the name of that Italian restaurant on the high street? It's on the tip of my tongue." |
| Exam / learning | "I studied it last night — the answer is right on the tip of my tongue!" |
| Almost saying something | "It was on the tip of my tongue to tell him what I really thought, but I held back." |
| Forgetting a word | "There's a word for that exact feeling — you know, when you can't remember something. It's on the tip of my tongue." |
How to Use It
Register: Informal to neutral. Very common in everyday spoken English. Natural in conversation, casual writing, and narrative. Less common in formal writing, where you would simply describe the memory difficulty literally.
Grammar patterns: Typically used with "it's" or "it was": "It's on the tip of my tongue." Can also be used with "have": "I have it on the tip of my tongue." The possessive pronoun changes to match the person: my / your / his / her / their tongue.
Tip: For meaning 2 (almost saying something), the past tense "was on the tip of my tongue" is most common, as it describes a moment that has now passed.
Common Mistakes
Watch out for these errors
"The word is at the tip of my tongue." (the standard preposition in this idiom is "on", not "at")
"The word is on the tip of my tongue."
"It's on the tip of the tongue." (should be a possessive pronoun: "my / your / his tongue")
"It's on the tip of my tongue."
"I had it in the tip of my tongue." ("in" is wrong — the correct preposition is "on")
"I had it on the tip of my tongue."
Similar Idioms
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Frequently Asked Questions
What does "on the tip of your tongue" mean?
"On the tip of your tongue" describes the frustrating experience of almost remembering a word, name, or piece of information — you know you know it, and you feel it is right on the verge of coming to mind, but it just won't come out.
Is there a scientific name for the "tip of the tongue" feeling?
Yes. Psychologists and linguists call it the TOT state — Tip Of the Tongue state. It is a well-studied memory phenomenon where a person is confident they know a word, can often recall partial information (first letter, syllable count, similar words), but cannot fully retrieve it. Research shows it becomes more common with age.
Can "on the tip of your tongue" mean you are about to say something?
Yes — the phrase has a second common use. "It was on the tip of my tongue to tell her the truth" means you were about to say something but stopped yourself. In this use, the emphasis is on restraint — you nearly said something but held back.
How do you use "on the tip of your tongue" in a sentence?
Common patterns: "It's on the tip of my tongue — give me a second." / "What's that actor's name? It's on the tip of my tongue." / "The word is right on the tip of my tongue but I just can't get it." The phrase typically introduces or follows a description of struggling to recall something.
What is the opposite of "on the tip of your tongue"?
If something is "on the tip of your tongue", you almost remember it. The opposite would be "drawing a complete blank" (no memory at all) or "it came to me straight away" / "I remembered it immediately" (effortless recall).
Is "on the tip of your tongue" used in other languages?
Yes — many languages have equivalent idioms. French: "sur le bout de la langue". Spanish: "en la punta de la lengua". German: "auf der Zunge liegen". The universality reflects the fact that the TOT memory phenomenon occurs across all languages and cultures.
What CEFR level is "on the tip of your tongue"?
"On the tip of your tongue" is considered a B2 (Upper Intermediate) idiom. It requires understanding of figurative language and the ability to use idiomatic expressions naturally in context.
Can you say "it's on the tip of his tongue"?
Yes. The pronoun changes to match the person: "It's on the tip of my tongue." / "It was on the tip of her tongue." / "The answer was on the tip of his tongue." The structure "on the tip of [possessive] tongue" is consistent.
What does "bite your tongue" mean?
"Bite your tongue" is a related idiom meaning to stop yourself from saying something you want to say but should not: "I wanted to complain, but I bit my tongue." It is different from "on the tip of your tongue", which is about struggling to recall something, not about restraint.
Are there other idioms about memory in English?
Yes. Memory idioms include: "learn something by heart" (memorise perfectly), "jog your memory" (help you remember), "it slipped my mind" (I forgot), "draw a blank" (remember nothing), "ring a bell" (sound familiar), and "in the back of your mind" (subconsciously remembered).