Conversational English gets you through the door.
Vocational fluency gets you the job.

Two different problems

Imagine two scenarios.

In the first: Amara, a Tigrinya speaker from Eritrea, has completed ESOL Level 2. She can navigate daily life in English — shopping, appointments, conversations with her children's teachers, phone calls to her landlord. Her English is functional and improving. She applies for a care assistant role at a local care home. She fails the interview. The interviewer asks her to describe how she would document a change in a resident's condition. She does not know the vocabulary. She has never encountered care documentation language in her ESOL provision.

In the second: Mohammed, an Arabic speaker from Syria with a civil engineering degree, has B1 English. He can converse easily, read a newspaper, send emails. He applies for a site supervisor role on a construction project. He fails the health and safety induction test because the specific terminology of UK site safety — the acronyms, the regulatory references, the toolbox talk language — is not part of his vocabulary set. His engineering knowledge is irrelevant in the assessment. His English fluency, which is genuine, is irrelevant in the assessment. The specific vocabulary of UK construction site safety is what matters. And nobody taught him that.

What vocational fluency is

Vocational fluency is the command of sector-specific professional language — the vocabulary, abbreviations, documentation conventions, professional register, and communicative norms of a specific occupational context. It is distinct from:

• Conversational English — the ability to communicate in everyday social contexts
• General workplace English — the ability to communicate in a generic work environment
• Academic English — the register used in education and formal writing
• Occupational English Testing — assessment of general English proficiency in occupational contexts (e.g. OET for healthcare)

A person can be proficient in all of the above and still lack vocational fluency in their target sector. Conversely, targeted vocational fluency training can produce employment-ready language competency at lower general CEFR levels than most people assume — because the specific vocabulary required for a care assistant role is limited, learnable, and highly trainable even at A2 general English level.

The vocabulary problem

Research in applied linguistics consistently finds that vocabulary — not grammar — is the primary predictor of comprehension and production in a second language. For vocational contexts, this is even more pronounced: the vocabulary of a particular profession is finite, specific, and learnable independently of general language level.

The vocabulary of clinical handovers, care documentation, and patient communication — the words that determine whether a nurse can function safely on an NHS ward — is a bounded set. It is teachable. It can be taught in parallel with general English development, not sequentially after it. The learner does not need to achieve B2 general English before beginning sector-specific vocabulary acquisition.

Why simultaneous bilingual instruction works

The most efficient method for sector-specific vocabulary acquisition is simultaneous bilingual instruction: presenting the English term and its native-language equivalent at the same moment, in the same instructional context.

This is not a compromise. It is the pedagogically optimal approach for professional vocabulary acquisition in a second language. The native language provides the conceptual anchor — the learner already knows what "handover" means as a clinical concept. What they need is the English term and its associated professional conventions. Giving them both simultaneously reduces cognitive load, accelerates acquisition, and improves long-term retention.

Most ESOL provision withholds native language on the theory that English-only immersion produces better outcomes. For general communicative competency, there is some evidence for this. For sector-specific professional vocabulary acquisition, it slows learning significantly — because the learner is now acquiring both a new concept and a new word, rather than just a new word for an existing concept.

What this means for commissioning

If you commission ESOL provision and expect it to produce employment outcomes, you are not getting what you are paying for — not because the provision is bad, but because it was not designed for that purpose.

Closing the employment gap requires vocational fluency training: sector-specific, targeted, bilingual, and sequenced to the actual language demands of the destination role. This can be delivered alongside ESOL, after ESOL, or — for learners who already have functional general English — instead of ESOL. The decision should be driven by the employment destination, not by a generic provision pathway.