Dic: drift (some of its meanings as a verb)

• As rural factories shed labour, people drift towards the cities.
• Cool summer dance sounds are drifting from the stereo indoors.
• The snow, except where it drifted, was only calf-deep.

5. VERB | To drift somewhere means to move there slowly or gradually.

6. VERB | If sounds drift somewhere, they can be heard but they are not very loud.

7. VERB | If snow drifts, it builds up into piles as a result of the movement of the wind.

..... Cobuild