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Related to onto: hang onto


 (ŏn′to͞o′, -tə, ôn′-)
1. On top of; to a position on; upon: The dog jumped onto the chair.
2. Informal Fully aware of; informed about: The police are onto the robbers' plans.
adj. Mathematics
Of, relating to, or being a function such that every element of the codomain is the value that corresponds to an element in the domain.


(ˈɒntʊ; unstressed ˈɒntə) or

on to

1. to a position that is on: step onto the train as it passes.
2. having become aware of (something illicit or secret): the police are onto us.
3. into contact with: get onto the factory.
Usage: Onto is now generally accepted as a word in its own right. On to is still used, however, where on is considered to be part of the verb: he moved on to a different town as contrasted with he jumped onto the stage


(ˈɒn tu, ˈɔn-; unstressed ˈɒn tə, ˈɔn-)

1. to a place or position on; upon; on.
2. Informal. aware of the true nature, motive, or meaning of: I'm onto your tricks.
3. Math. pertaining to a function or map from one set to another set, the range of which is the entire second set.


a combining form meaning “being”: ontogeny.
[< New Latin < Greek]


You usually use the preposition onto to say where someone or something falls or is put.

He fell down onto the floor.
Place the bread onto a large piece of clean white cloth.

After many verbs you can use either onto or on with the same meaning.

I fell with a crash onto the road.
He fell on the floor with a thud.
She poured some shampoo onto my hair.
Carlo poured ketchup on the beans.

However, after verbs meaning climb or lift you should use onto, rather than 'on'.

She climbed up onto his knee.
The little boy was helped onto the piano stool.

If you hold onto something, you put your hand round it or against it in order to avoid falling. After verbs meaning hold, you use onto as a preposition and on as an adverb.

She had to hold onto the edge of the table.
I couldn't put up my umbrella and hold on at the same time.
We were both hanging onto the side of the boat.
He had to hang on to avoid being washed overboard.

Onto is sometimes written as two words on to.

She sank on to a chair.
ombord påop på
jhk suuntaan tai paikkaan
ở trêntrên


[ˈɒntʊ] PREP
1. (= on top of) → a, sobre, en, arriba de (LAm)
he got onto the tablese subió a la mesa
2. (= on track of) to be onto sthhaber encontrado algo, seguir una pista interesante
he knows he's onto a good thingsabe que ha encontrado algo que vale la pena
the police are onto the villainla policía tiene una pista que le conducirá al criminal
we're onto themles conocemos el juego
they were onto him at oncele calaron en seguida, le identificaron en el acto
3. (= in touch with) I'll get onto him about itinsistiré con él, se lo recordaré


on to [ˈɒntu ˈɒntuː ˈɒntə] prepsur
to get onto sth [+ bus, train, plane] → monter dans qch
We got onto the bus and sat down → Nous sommes montés dans le bus et nous sommes assis.
to be onto sth → être sur un coup
to be onto something big → être sur un gros coup
Archaeologists knew they were onto something big → Les archéologues savaient qu'ils étaient sur un gros coup., Les archéologues pressentaient qu'ils étaient en train de découvrir quelque chose d'important.
to be onto sb → être après qn


(= upon, on top of)auf (+acc); (on sth vertical) → an (+acc); to clip something onto somethingetw an etw (acc)anklemmen; to get onto the committeein den Ausschuss kommen
(in verbal expressions, see also vb +on) to get/come onto a subjectauf ein Thema zu sprechen kommen; to come onto the marketauf den Markt kommen; are you onto the next chapter already?sind Sie schon beim nächsten Kapitel?; when will you get onto the next chapter?wann kommen Sie zum nächsten Kapitel?; the windows look onto the lakedie Fenster gehen zur Seeseite hinaus; to be onto or on to somebody (= find sb out)jdm auf die Schliche gekommen sein (inf); (police) → jdm auf der Spur sein; I think we’re onto somethingich glaube, hier sind wir auf etwas gestoßen


[ˈɒntʊ] prepsu, sopra
he climbed onto the table → è salito sopra il tavolo
to be onto sb (fam) (suspect) → scoprire qn
I'm onto something (fam) → sono su una buona pista
to be onto a good thing (fam) → trovare l'America
I'll get onto him about it → gliene parlerò io


عَلَى, في do, na ombord på, op på auf, in πάνω, σε a, en, hacia jhk suuntaan tai paikkaan dans, sur na, u su ・・・に, ・・・の上へ ~에, ~위로 in, op oppi, do, na entrar, para, para cima de на, upp เข้าไปยัง, ไปบน ne, üzerine ở trên, trên 到…之上, 到…里面
References in classic literature ?
On christmas night, a dozen girls piled onto the bed which was the dress circle, and sat before the blue and yellow chintz curtains in a most flattering state of expectancy.
When he straightened himself up to greet us, drops of perspiration were rolling from his thick nose down onto his curly beard.
First you wrap a layer or two of blanket around your body, for a sort of cushion and to keep off the cold iron; then you put on your sleeves and shirt of chain mail -- these are made of small steel links woven together, and they form a fabric so flexible that if you toss your shirt onto the floor, it slumps into a pile like a peck of wet fish-net; it is very heavy and is nearly the uncomfortablest material in the world for a night shirt, yet plenty used it for that -- tax collectors, and reformers, and one-horse kings with a defective title, and those sorts of people; then you put on your shoes -- flat-boats roofed over with interleaving bands of steel -- and screw your clumsy spurs into the heels.
A few minutes later, a sharp-eyed lad ran into the Monte Rosa Hotel, at Zermatt, saying that he had seen an avalanche fall from the summit of the Matterhorn onto the Matterhorn glacier.
Look at that-air grindstone, s'I; want to tell ME't any cretur 't's in his right mind 's a goin' to scrabble all them crazy things onto a grindstone, s'I?
Well, I didn't neither, but all at once it popped onto me that it was Friday.
The frost was working out of the ground, and out of the air, too, and it was getting closer and closer onto barefoot time every day; and next it would be marble time, and next mumbletypeg, and next tops and hoops, and next kites, and then right away it would be summer and going in a-swimming.
Now you watch me heave this newspaper right onto Mis' Brown's doorstep.
But they soon got used to it; and they used to think it great fun to watch Jip, the dog, sweeping his tail over the floor with a rag tied onto it for a broom.
I had forged ahead for perhaps a mile or more without hearing further sounds, when the trail suddenly debouched onto a small, open plateau near the summit of the pass.
In the meantime, a number of the sailors of the Nautilus, all strong and healthy men, had come up onto the platform.
Why did you set--your people onto me when I was in the hut?