Plural of Antenna
The plural of “antenna” depends on sense. Biological organs are “antennae”; broadcasting or radio structures are “antennas.” Cambridge also records both forms for the figurative sense of perceptiveness, so the safest editing test is to identify the meaning first.
Use “antennae” for insect or crustacean sensory organs and “antennas” for radio equipment. Figurative noticing can use “antennae” or “antennas.”
Key details
Choose the right form
| Meaning / situation | Form / construction | Decision |
|---|---|---|
| insect/crustacean organ | antennae | Biological plural. |
| radio/broadcasting structure | antennas | Technical equipment plural. |
| figurative perceptiveness | antennae or antennas | Both recorded. |
Quick tests
Plural-choice test
Does “antenna” mean an insect or crustacean sensory organ?
If yes: Use “antennae.”
If no: If it means radio equipment, use “antennas”; figurative noticing permits both in Cambridge.
Caveat: Sense, not just spelling preference, determines the standard choice in the main literal meanings.
Examples
The moth moved its antennae.
Biological organs take “antennae.”
The roof supports three antennas.
Radio equipment takes “antennas.”
Experienced editors keep their antennae up for ambiguity.
The figurative noticing sense can use “antennae.”
Further guidance
Core difference
Use “antennae” for insect/crustacean organs and “antennas” for radio or broadcasting equipment.
Fast Test
Identify the noun sense before choosing the plural.
Usage Boundary
Do not apply one plural form mechanically across biological, technical, and figurative meanings.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
- ANTENNA | English meaning - Cambridge Dictionary (opens in a new tab)Cambridge University Press · Cambridge uses antennae for insect/crustacean organs, antennas for radio equipment, and records antennae or antennas in the figurative noticing sense.