Saying one thing through another, without a word of comparison: instead of saying that something is like another thing, one says that it is. The image transfers to the subject the qualities of the thing with which it is identified.
In Julius Caesar
These growing feathers plucked from Caesar's wing / Will make him fly an ordinary pitch
Caesar's power turns into plumage: "these growing feathers" are his influence, and plucking them would make him "fly" only at an ordinary height. The image of the bird makes his dominion seem something that grows on its own and needs pruning.
Act I: The Triumph and Seduction of Brutus, Flavius
Cry 'Havoc!' and let slip the dogs of war
Act III: The Assassination and the Forum, Mark Antony
When love begins to sicken and decay, / It useth an enforcèd ceremony.
Act IV: The Quarrel in the Camp, Brutus
There is a tide in the affairs of men / Which, taken at the flood, leads on to fortune
Act IV: The Quarrel in the Camp, Brutus
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