The phrase "autumn into a" is not correct and does not form a complete or usable expression in written English.
It may be intended to describe a transition or change related to autumn, but it lacks clarity and context.
Example: "As the leaves began to fall, I felt a sense of nostalgia as I watched autumn into a new season."
Alternatives: "transition into a" or "shift into a".
By sweeping the autumn leaves into a quiet corner we can offer the local hedgehog a safe haven for hibernation.
When he was chancellor, Gordon Brown turned his autumn statements into a mini-Queen's speech of policy proposals and boastfulness.
Populist parties enraged by the president's decision to scupper their government are threatening to turn the autumn elections into a referendum on Italy's place in Europe.
The nickname emerges in R. J. Cutler's documentary "The September Issue," in which the filmmakers turned the fantastical and fanatical behind-the-scenes preparations for the magazine's gigantic annual autumn edition into a cliffhanger.
This season, the forest is yielding its delicious prize but withholding a dark secret: Who is poisoning all the truffle dogs and turning the autumn hunt into a slaughter?
That's because fishing and bicycle repair are both elements of Fall Into Fun, an autumn festival sponsored by the Battery Park City Parks Conservancy.
The union has called for a programme of industrial action across the Home Office and its agencies running into the autumn, in a dispute over redundancies, 8,500 job cuts and a two-year pay freeze.
The Commons culture committee was already planning to hold an inquiry in the autumn into harmful online content and child protection.
This species may conduct a northward migration in summer and autumn, into the waters of the British Isles.
Suitably inspired, you can begin by sowing a range of delicious salads to see you through autumn into winter: rocket, spinach, lamb's lettuce, curly endive, mizuna and all the Oriental greens.
