Onward
Part of speech: adjective
Definition: Moving forward.
Part of speech: adverb
Definition: In a forward direction.
Example sentence: For so, surely you will cast a light of gladness upon his onward journey, and contribute your part towards the building of that kingdom of love which links our earth to heaven.
Forth
Part of speech: adjective
Definition:
Part of speech: noun
Definition:
Part of speech: adverb
Definition: Forward in time, place or degree.Out into view.From a particular place or position.
Example sentence: And now, once again, I bid my hideous progeny go forth and prosper. I have an affection for it, for it was the offspring of happy days, when death and grief were but words, which found no true echo in my heart.