Difference between Titter and Giggle

TITTER vs GIGGLE: NOUN

A nervous giggle.
A restrained or nervous laugh; a giggle; a snicker. There's a titter of winds in that beechen tree.
A weed, probably the hairy vetch. See tine.
A restrained laugh.
A nervous or repressed giggle.
A nervous restrained laugh

A foolish or nervous laugh
A short, spasmodic laugh.
A low, spasmodic, affected laugh, in a series of short gasps or catches of the breath.
A kind of laugh, with short catches of the voice or breath; a light, silly laugh.
A high-pitched, silly laugh.
Amusement.

To laugh with the tongue striking against the root of the upper teeth; to laugh with restraint, or without much noise; to giggle.

To laugh in a restrained or nervous manner, as from suppressed mirth, pleasure, or embarrassment; giggle; snicker.
To move back and forth; sway; waver.
To teeter; seesaw.
To tremble.

To laugh with short catches of the breath or voice; laugh in a silly or affected manner; titter.

Mutter, Shriek, Belly laugh, Wince, Murmur, Mirth, Laughter, Cackle, Snicker, Chortle, Snigger, Guffaw, Teehee, Tehee, Giggle

Trick, Stuffing, Charade, Tehee, Farce, Prank, Parody, Mockery, Kidding, Joke, Laughing, Laughter, Snicker, Laugh, Titter

Hilarity, Mutter, Shriek, Belly laugh, Wince, Murmur, Mirth, Laughter, Cackle, Snicker, Chortle, Snigger, Guffaw, Tehee, Giggle

Sham, Trick, Stuffing, Charade, Tehee, Farce, Parody, Mockery, Kidding, Joke, Laughing, Laughter, Snicker, Laugh, Titter

The haulm and husks are either used for titter or burned, and the ashes spread upon the land.
There was a thin and nervous titter; then I picked up the spider and let it run up my anorak.
What is it about their times with their beaux that the maids titter over on the backstairs.
Synonyms for rib tickler include belly laugh, giggle, laugh, snigger, snicker, titter, chuckle, chortle, cackle and guffaw.
Vitriolic Lesley limn or mistrusts some mosasaurs ghastfully, however preliminary Riccardo titter actionably or counterpoised.
Gronk loved whose mere mention makes us all titter like prepubescents to this day.
Titter, the only thing your missing is a hawaiian shirt and shorts!
Still one must not titter at the afflicted.
His double entendre made us titter like choirgirls.

LOL, Ahh that one always makes me giggle.
Guaranteed to make you giggle, marvel, and matter.
Some of them really do make me giggle.
Musk said mischievously, breaking into his famous giggle.
But it was funny and made me giggle.
It made Jessie and I both giggle immediately.
Laura would giggle and play up to him.
You notice she is suppressing a tiny giggle.
It makes me have a wee giggle inside.
It was because I used to giggle at everything; I used to get halfhigh and I would giggle.