idem sonans
adjective
idem so·nans
-ˈsō-ˌnanz, -ˌnänz
: relating to or being two names having the same or similar pronunciation or sound
the two names are not idem sonans—
Johnson v. Estelle, 704 F.2d 232 (1983)
compare misnomer
Johnson v. Estelle, 704 F.2d 232 (1983)Note: An idem sonans name allows a pleading or other document (as a warrant) to be considered valid despite the minor misspelling of a name or other misidentification of a party. The fact that two trademarks are idem sonans may be used to establish the likelihood of confusion on the part of consumers in an infringement case.
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“Idem sonans.” Merriam-Webster.com Legal Dictionary, Merriam-Webster, https://www.merriam-webster.com/legal/idem%20sonans. Accessed 4 Nov. 2025.
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