Word
FOE
Phoneticsfoe
US/ˈfoʊ/
UK/fˈəʊ/
Definitions
01an enemy
B2 · Upper Intermediate Countable noun Literary
n. an enemy or someone you are fighting against.
n. an adversary or opponent in a conflict or struggle.
“In the story, the brave knight finally defeated his old foe.”
“The two nations, once close allies, became bitter foes after the border dispute escalated into open conflict.”
02unit of energy
C2 · Proficiency Countable noun Science Technical
n. a very large unit of energy used by scientists to measure things like exploding stars.
n. a unit of energy equal to 10 to the power of 44 joules, typically used in astrophysics to measure the energy release of supernovae.
“The scientist explained that the supernova released several FOE of energy.”
“Calculating the total kinetic energy of the stellar explosion required the use of FOE as a standard unit of measurement.”
Usage
Commonly used in literary, historical, or dramatic contexts; less frequent in everyday conversation than 'enemy'.
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
- Frequency
- Frequent
- Level
- C1 · Advanced
- Updated
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