Photo by amine photographe on PexelsIn French you don't say "I am a teacher" -- you drop the article entirely: je suis professeur. Here's the rule, profession vocabulary, and the gender trap to avoid.
Someone at a dinner party in Paris asks you, "Qu'est-ce que tu fais dans la vie ?" (What do you do for a living?), and you reach for the answer that feels obviously correct: "Je suis un professeur." It sounds reasonable, it's understandable, and it's still slightly off -- a native speaker's ear catches that extra un before you've even finished the sentence. The version they'd actually say drops the article completely: je suis professeur, full stop.
Talking about your job is one of the first things that comes up in almost any real French conversation -- with a new coworker, a host family, someone you meet traveling, or in a French-language job interview. It's a short exchange, but it's also one of the clearest tells of a learner still translating from English in their head, because the rule that governs it has no equivalent on the English side at all. Get it sorted here, and one of the most common things you'll say in French stops being a guessing game.
Here's the core rule: after être (to be) -- and after similar verbs like devenir (to become) and rester (to remain) -- an unmodified profession noun takes no article at all. Je suis professeur (I'm a teacher), elle est avocate (she's a lawyer), il est devenu médecin (he became a doctor) -- no un, une, or des anywhere in sight, even though English inserts "a" every time. This is the opposite of most French nouns, which almost always need an article, so it's worth treating as a deliberate exception rather than assuming it'll follow the usual pattern.
The article comes back the moment the profession is described by an adjective, because at that point the sentence is no longer just naming a role -- it's describing a person. Je suis un bon professeur (I'm a good teacher) needs un because of bon; elle est une avocate brillante (she's a brilliant lawyer) needs une because of brillante. Drop the adjective and the article has to go too: je suis professeur, not je suis un professeur, unless something is actually describing that professeur.
A working list of common professions, worth learning in pairs since the feminine form isn't always a simple add-on: un professeur / une professeure (uhn proh-feh-suhr / ewn proh-feh-suhr) -- teacher. Un médecin (uhn mayd-san) -- doctor. Un(e) avocat(e) (ah-voh-kah / ah-voh-kaht) -- lawyer. Un ingénieur / une ingénieure (an-zhay-nyuhr) -- engineer. Un infirmier / une infirmière (an-feer-myay / an-feer-myehr) -- nurse. Un vendeur / une vendeuse (vahn-duhr / vahn-duhz) -- salesperson. Un acteur / une actrice (ak-tuhr / ak-treess) -- actor. Un(e) employé(e) (ahn-plwah-yay) -- employee. Un(e) commerçant(e) (koh-mehr-sahn / koh-mehr-sahnt) -- shopkeeper. Un(e) fonctionnaire (fohnk-syoh-nehr) -- civil servant. Être au chômage (etr oh shoh-mahzh) -- to be unemployed. Travailler dans (trah-vah-yay dahn) -- to work in [a field]. [AUDIO: je suis professeur] [AUDIO: qu'est-ce que tu fais dans la vie]
Those masculine-to-feminine pairs above aren't random -- they follow a handful of patterns worth knowing as a set, not memorizing one profession at a time. Many professions simply add -e: avocat becomes avocate, employé becomes employée. Professions ending in -eur often switch to -euse: vendeur becomes vendeuse, coiffeur (hairdresser) becomes coiffeuse. Professions ending in -teur more often switch to -trice: acteur becomes actrice, directeur (director) becomes directrice. And professions ending in -iste, like dentiste or artiste, don't change at all between genders -- the article does all the work instead: un dentiste, une dentiste.
Médecin deserves its own note, because it's an easy trap for English speakers reading too quickly. Médecin (doctor) has traditionally stayed masculine in form no matter who's being described -- une femme médecin (a female doctor) was the older workaround, though une médecin is now widely accepted in everyday French. What you should never say is une médecine -- that word exists, but it means "medicine" the subject or the substance, not a person at all. Reaching for the wrong ending here doesn't just sound off; it changes what you're actually saying.
That gender question sits inside a real, ongoing debate in France called la féminisation des noms de métiers -- the push to give every profession a natural-sounding feminine form, rather than defaulting to the masculine for both genders. The Académie française, the official authority on the French language, resisted forms like une autrice (a female author, alongside the older une auteure) for years, only formally endorsing feminized job titles in 2019. Québécois French moved faster and further on this decades earlier, which is why a Canadian French speaker and a French one can sometimes reach for slightly different words for the same job -- both correct, just from different points in the same debate.
Picture the exchange you're actually going to have. Someone asks, "Tu fais quoi comme métier ?" (What do you do for work? -- more casual than dans la vie) You answer: "Je suis ingénieure, je travaille dans la technologie." (I'm an engineer, I work in tech.) They might follow up: "Ah, et tu aimes ça ?" (Oh, and do you like it?) -- to which you could add, "Oui, mais avant, j'étais professeur." (Yes, but before, I was a teacher.) Every profession in that exchange stays bare, no article, exactly the way the rule above predicts.
Try it yourself. 1) Fill in the blank, adding an article only if needed: Elle est ___ médecin. 2) Fill in the blank: Il est ___ excellent ingénieur. 3) Translate to French: "I am a nurse." 4) Translate to French: "She is a brilliant lawyer." 5) Multiple choice: what does une médecine mean -- a female doctor, medicine (the subject), or a type of hospital? 6) Give the feminine form of acteur.
Answer key: 1) no article -- elle est médecin. 2) un -- il est un excellent ingénieur, because excellent is an adjective describing him. 3) Je suis infirmière. 4) Elle est une avocate brillante. 5) Medicine, the subject -- une médecine never means a female doctor. 6) Actrice.
Three things to carry into your next conversation: profession nouns drop the article entirely after être, devenir, or rester -- unless an adjective is describing the person, in which case the article comes straight back. Feminine forms of professions follow real patterns (-e, -eur to -euse, -teur to -trice, or no change at all for -iste words), so learn the pattern, not just the pair. And médecin stays worth double-checking, since une médecine is a completely different word from a female doctor. Next time someone asks what you do dans la vie, you'll answer without the extra article slowing you down. Head over to Vocabulary to drill this profession list with audio, or try a round of Exercises to make je suis + profession completely automatic.