Preposition
Upon; on top of.
My cat just jumped on to the keyboard.
(informal) Aware of.
The thought-police were on to my plans of world domination.
Used to indicate, or signpost, logical progression to a new topic in a talk or discourse.
Now. On to the system of active water uptake.
Let's go on to item 3 in the list.
If everyone held on to love, life for everyone on this earth would be like heaven. Pavle (Serbian)
In the spiritual life we can do nothing worthy without repentance, but the Lord has much mercy on us because of our intentions. He who compels himself and holds on to repentance until the end, even if he sins is saved because he compelled himself, for the Lord promised this in the Gospel. Marcus Eremita
I do not like to repeat successes, I like to go on to other things. Walt Disney
The world is a rose: smell it and pass it on to your friends. Persian Proverb
A desperate person will even hold on to a knife edge. Filipino Proverb
Unaccustomed to wear them, he displays the breeches he has on to every one he meets. Latin Proverb