anvil UK /ˈæn.vɪl/US /ˈæn.vəl/noun 5verb 1forms 5phrases 1 noun5 •A heavy iron block used in the blacksmithing trade as a surface upon which metal can be struck and shaped.My heart is as an anvil unto sorrow, Which beats upon it like the Cyclops’ hammers […] — 1594 •A stone or other hard surface used by a bird for breaking the shells of snails. •A horizontal-topped mass of cloud, shaped like a blacksmith's anvil, that forms before a thunderstorm. •The incus bone in the middle ear. •The non-moving surface of a micrometer against which the item to be measured is placed. verb1 •(figurative) To fashion on, or as if on, an anvil.I Have anvil’d out this Iron Age, Which I commit, not to your patronage, But skill and Art […] — 1648 formsanviled · anvilled · anviling · anvilling · anvils Phrases with anvil on the anvilIn a state of discussion, formation, or preparation; not yet matured.