To make something soft or softer.
To palatalize.
To become or make (a consonant) more lenis, to lenite.
To make less harsh
To become soft or softer
To undermine the morale of someone (often soften up).
To sharpen (an image) by creating a blurred ("unsharp") negative as a mask, and then combining that mask with the original.
out of focus; blurry.
dulled or intentionally blunt.