notion-n; 3 Senses

Sense Number 1: a mental conception or idea about something

Commentary: NOTION[+state][+mental][+conception] [+entity][+abstract][+information][+idea]

Examples:
Different societies have differing notions about the roles of men and women.
I have no notion of where I may have left my keys.
It's an interesting notion, but can it be tested experimentally?

Mappings:
WordNet 3.0 Sense Numbers: 1, 2, 3

Sense Number 2: a sudden emotional impulse

Commentary: NOTION[+state][+emotional][+desire][+impulse]

Examples:
In the middle of the meeting we suddenly developed the notion to order a pizza.
John acted on his notion to jump into the ocean for a morning swim.

Mappings:
WordNet 0.0 Sense Numbers: 2

Sense Number 3: small personal items, sundries

Commentary: NOTION[+entity][+group][+artifact][+small][+personal][+sundries]
NOTE: usually occurs in the plural form

Examples:
Jane bought small bottles of shampoo and rinse at the notions counter.
Needle and thread are useful notions to have when you travel.

Mappings:
WordNet 3.0 Sense Numbers: 4