Reverse Dictionary: GIGGLE

ADJECTIVES
1748 ► TITTERING giggling, laughing with suppressed mirth
1892 ► GAGGLING laughing affectedly, giggling → Sc.
1898 ► AGIG giggling, excited → Eng. dial. (Bk.)

NOUNS
1654 ► TWITTERING a laughing, esp. in a somewhat suppressed or restrained manner, the sound of such laughter; tittering, giggling, sniggering
1700 ► TWITTER a fit of laughter; a titter, a giggle → chiefly Eng. dial. & US
1728 ► TITTER a stifled laugh, a giggle
1754 ► TITTERATION tittering, giggling

NOUNS, PERSON
1611 ► GIGGLE a giggling, laughing, romping girl → obs.
1633 ► GIGGLER one who giggles; one who bursts into laughter at the least trifle; one very much inclined to laughter
1828 ► TITTERER one who laughs restrainedly; a giggler
1844 ► GEEGLER a giggler → Sc. 
1886 ► GIGGLING-JENNY a child always laughing → Eng. dial. (Bk.)
1888 ► GAUFFIN a giggling, light-headed person → Sc. (Bk.)
1903 ► GIGGLEBY a silly, flighty, or giggling girl → Sc.
1962 ► GIGGLEBOX a girl or child who is prone to giggling → US sl.
1972 ► GIGGLY-GUTS one prone to giggling; a giddy person → US sl. 
1988 ► GIGGLING GERTY a woman given to giggling, or behaving in a silly, giggling manner → Aust. sl. (Bk.)

VERBS
1513 ► KECKLE of a person: to chuckle, to laugh, to giggle
1590 ► SMIRKLE to smirk or smile; to giggle; to laugh in a suppressed manner → Sc.
1619 ► TITTER to laugh in a suppressed or covert way; to giggle
1654 ► TWITTER to laugh in a somewhat suppressed or restrained way; to titter, to giggle, to snigger
1782 ► KICKLE to laugh in a high-pitched or silly manner; to giggle; to chuckle → Sc.
..19C ► GIZZLE to giggle → Eng. dial.
1842 ► FIND A HAW-HAW’S NEST WITH A TEE-HEE’S EGG IN IT to giggle and laugh immoderately or inappropriately → Amer. dial.
1882 ► KEECHLE → KEEGLE to giggle, to titter → Sc.
1885 ► GAGGLE to laugh, to giggle, to cackle → Sc. obs.
1913 ► TUMBLE INTO A TEEHEE’S NEST to be taken with a fit of giggling → Amer. dial. (Bk.)
1917 ► FIND A TEE-HEE’S NEST FULL OF HA-HA EGGS to giggle and laugh immoderately or inappropriately → Amer. dial.
1917 ► FIND A TEE-HEE’S NEST WITH A HA-HA’S EGG IN IT to giggle and laugh immoderately or inappropriately → Amer. dial.
1917 ► FIND A TEHEE’S EGG IN A HAHA’S NEST to giggle and laugh immoderately or inappropriately → Amer. dial.