Homophones for aught, ault, ought

aught / ault / ought [ɔt]

aught – pron. – usually implying the negative – anything whatever

ault – n. – Irish, a narrow glen with cliffs on both sides

ought – n. & v. – n. – a figure denoting nothing (0); aux. v. – 1. expressing duty or rightness; 2. expressing a shortcoming; 3. expressing advisability