Most first-time and experienced managers who are strong in general English still hit a specific wall: the vocabulary of managing people is different from the vocabulary of doing the work yourself.
You can explain a technical decision clearly. You can write a precise status update. You can hold your own in a client call. Then you're in a 1:1, trying to explain why a deadline slipped, and the exact word doesn't arrive. The gap isn't confidence. It's a specific, learnable set of words. Native-speaking managers use them without thinking, because they've heard them in a hundred management conversations you haven't had yet.
This is not a grammar problem, and it's not a vocabulary-size problem. Below, the words are organized by the situation you're actually in, not alphabetically.
Assigning and owning work
Most of what a manager does day to day is decide who does what, and who answers for the result. English has two different words for that, and conflating them causes real confusion.
Responsible describes who does the work. Accountable describes who owns the outcome -- even if they didn't do the work themselves. A manager can be accountable for a deadline that an individual contributor is responsible for hitting. Saying "I'm responsible for the launch" when you mean "I'm accountable for the launch" understates your actual role; saying the reverse understates someone else's.
Delegate means handing off a task along with the context and authority to make decisions about it. Handing off a task without either of those is closer to dumping it on someone. "I delegated the vendor negotiation to Priya" implies she has room to make calls; "I gave Priya the vendor thing" doesn't tell anyone what she's actually allowed to decide.
Coaching and developing people
Three verbs get used interchangeably for very different relationships to someone's growth, and picking the wrong one changes what the other person expects from you.
Coach means helping someone improve at something specific, usually through direct feedback on their own work. Mentor means sharing broader experience and perspective, often without direct authority over the person's day-to-day. Manage covers the whole relationship, including both of the above plus decisions about their role, pay, and performance rating. "I'm coaching her on presentation skills" is a narrower, more specific claim than "I'm mentoring her" -- and neither is the same as "I manage her."
Calibrate, in a performance-review context, means adjusting your ratings against other managers' ratings so the same bar applies across the team -- not just "thinking it over." "We calibrated the ratings across the team before finalizing them" is a specific process; "we thought about it some more" isn't.
Understanding is only the first step.
Lyra Practice helps you retrieve and use high-value workplace expressions in realistic situations until they feel natural.
Start a practice session →Talking about performance
This is where imprecise word choice does the most damage, because the word itself shapes how serious the conversation sounds to the person hearing it.
Underperforming is a specific, documented claim: someone is not meeting a defined bar, consistently. Struggling is softer and more provisional -- it describes a rough patch, not necessarily a pattern. Calling someone "underperforming" when you mean they had a bad month escalates the conversation further than you intended; calling a real, sustained pattern "struggling" can under-signal how serious it actually is.
A stretch goal is a target set deliberately above what's expected, with the understanding that missing it isn't a failure. A regular target carries the normal expectation of being met. Presenting a stretch goal as if it were a target -- or the reverse -- sets someone up to feel like they failed when they didn't, or to coast when they shouldn't.
Day-to-day oversight
The line between staying informed and controlling someone's work too closely is mostly drawn by which word you reach for.
Oversee means staying informed and available without directing every step. Micromanage means controlling the details of how work gets done, usually more than the situation calls for. Nobody describes themselves as micromanaging -- the word is almost always used about someone else -- which is exactly why it's worth knowing precisely: "I oversee the migration" and "I'm micromanaging the migration" describe very different levels of involvement, and only one of them is usually what you meant to say.
Why this vocabulary is worth learning deliberately
None of these are jargon in the empty sense. Each pair carries a real distinction. It changes what the person you're talking to expects next. Saying "accountable" instead of "responsible" tells your manager something specific about your role. Saying "coach" instead of "manage" tells a direct report something specific about the conversation ahead. Most non-native managers already know these words exist. The real problem is choosing the right one in the moment -- so they default to a vaguer word that says less than they meant.
That precision is exactly what deliberate practice builds. Lyra Practice is built around workplace scenarios like the ones above -- 1:1s, performance conversations, and delegation moments -- with feedback on whether the word you chose actually fits the situation.
Frequently Asked Questions
What is business English for managers?
It's the specific vocabulary used in the people-management parts of a manager's job -- assigning and owning work, coaching, performance conversations, and day-to-day oversight -- as distinct from the technical or functional vocabulary of whatever the team actually does. Words like accountable, delegate, coach, and underperforming carry precise meanings in this context that are worth learning deliberately.
What vocabulary do managers actually need at work?
Based on real management situations, the highest-leverage set covers four areas: ownership language (responsible vs. accountable, delegate vs. dump), development language (coach vs. mentor vs. manage, calibrate), performance language (underperforming vs. struggling, stretch goal vs. target), and oversight language (oversee vs. micromanage). These come up in nearly every 1:1 and performance cycle, far more often than generic "leadership" vocabulary.
How is this different from general leadership vocabulary?
General leadership content tends to teach communication style -- how to sound confident, how to run a meeting. This is narrower and more concrete: specific word pairs where choosing the wrong one changes what the other person understands about the situation, independent of how confidently you say it.