Explore Movie Vocabulary
Learn English with movies. Discover how much of a movie’s vocabulary you already know and review unfamiliar words before watching.
Antiviral
Unique vocabulary and phrases by level
How difficult is Antiviral in English?
Antiviral: 62.3% A1–A2 vocabulary; 16.6% B2, C1, and rare vocabulary. Vocabulary size: 1,168.
Unique vocabulary
- For A2 learners: 28.4% of unique vocabulary is above A2 or marked rare. Expect substantial preparation; start with short scenes and English subtitles.
- For B1 learners: 16.6% of unique vocabulary is above B1 or marked rare. Preview recurring words and use English subtitles.
- For B2 learners: 11.6% of unique vocabulary is above B2 or marked rare. Preview recurring words and use English subtitles.
9.3% Unclassified. Unclassified vocabulary has no reliable level assignment.
Vocabulary weighted by word occurrences
89.2% A1–A2 vocabulary; 4.6% B2, C1, and rare vocabulary; 2.5% Unclassified.
This counts repeated eligible words. Phrases are excluded from this calculation to avoid counting their component words twice.
Recurring words and phrases to preview
- virus (B1): 21 occurrences in available subtitles.
Subtitle example:
and then selling the contagious viruses to a piracy group.
- sample (B1): 15 occurrences in available subtitles.
Subtitle example:
They think he was undoing the copy protection on some of our samples
- clinic (C1): 9 occurrences in available subtitles.
Subtitle example:
or items belonging to The Lucas Clinic lncorporated or its suppliers?
- infect (rare): 9 occurrences in available subtitles.
Subtitle example:
The winner gets to infect him with their next cold
- infection (C1): 7 occurrences in available subtitles.
Subtitle example:
After infection, the virus lives on in the cells of its host
Compare with titles in similar genres
- This Island Earth: 16.4% B2, C1, and rare vocabulary (0.2 percentage points less than Antiviral).
- Disturbing Behavior: 16.3% B2, C1, and rare vocabulary (0.3 percentage points less than Antiviral).
- The Thing: 15.9% B2, C1, and rare vocabulary (0.7 percentage points less than Antiviral).
These percentages describe vocabulary, not the proportion of dialogue you will understand. CEFR labels are estimates, not official film ratings. Accent, speed, songs, context, and your own vocabulary also affect comprehension. Repeated occurrences may include repeated dialogue or lyrics.
How we estimate vocabulary difficulty · Evidence generated: