An object, often a representation of something, that a child can play with
M.E. toye, of unknown origin.
Bâzicé, from bâzi "game, play;" Mid.Pers. wâzig "play, game;" related to bâzidan "to play," bâxtan "to loose;" cf. Skt. vāja- "contest, war, prize, booty;" + -cé suffix of relation.
A simplified model that succeeds in capturing and furthering our understanding of one particular aspect of a physical situation, but which does not manage to describe all important aspects of that situation (Carl H. Brans).