| AC IV.xv.26 | [Cleopatra to Antony] If knife, drugs, serpents, have / Edge, sting, or operation |
| E3 II.i.404 | [Warwick to Countess] can one drop of poison harm the sea, / Whose hugy vastures can digest the ill / And make it lose his operation? |
| KL I.i.111 | [Lear to Cordelia] By all the operation of the orbs / From whom we do exist |
| RJ III.i.8 | [Mercutio to Benvolio, of a fellow in a tavern] by the operation of the second cup draws him on the drawer |