Definition of trouble:

part of speech: verb

To disturb; to put into confused motion; to grieve; to make uneasy; to molest; to engage overmuch; to give occasion of labour to.

part of speech: noun

Disturbance of mind; that which causes agitation or disturbance of mind; distress; anxiety; uneasiness; among miners, any shifting of the strata of a coal- field by which the regular and continuous working of its minerals is interrupted.