hadda

As an interjection yadda

is used three times in a row, or in combination with other words, to indicate part of a sentence which would be annoying to include, or which is incomprehensible, or which is just unimportant.

As a noun yadda

is one of a set of items which do not need to be specified; often used in conjunction with the catch phrase yadda yadda yadda.

As a contraction hadda is

had to.

As contractions the difference between whadda and hadda

is that whadda is eye dialect of what do|lang=en while hadda is had to.

As a verb hadna

is (nonstandard|or|dialectal) hadn't.

As a contraction hadda is

(nonstandard) had to.

As a contraction hadda

is (nonstandard) had to.

As a noun shadda is

a diacritic () used in the arabic script to indicate gemination of a consonant.

As a noun hadeda

is the hadada ibis. Bostrychia hagedash

As a contraction hadda is

had to.