True, hue, see EW, OO, etc.

UFF.

Buff, cuff, chuff,§ bluff, huff, gruff, luff,¶ puff, snuff, stuff, ruff, rebuff, counterbuff, rough, tough, enough, slough (cast skin), chough, etc.

UFT.

Tuft, rhymes the preterites and participles of verbs in UFF.

UG.

Lug,§ bug, dug, drug, hug, jug, rug, slug, smug,§ snug, mug, shrug, pug.

UGH.

Pugh (old form of "pooh"), see OO.

UGUE.