सहायक (sahaayak)

noun/adjective Two closely related uses: an adjective meaning 'helpful, supportive, contributory' and a noun meaning 'assistant, helper' -- both come from the same root as सहायता (sahaaytaa, 'help').
Sense 1 : assistant, helper (person)
noun, masculine
Synonyms: मददगार (madadgaar), सहायिका (sahaayikaa, feminine form)
Frequency: high
Cultural Note: You will see this word constantly on office doors and business cards in India -- निजी सहायक (nijii sahaayak, 'personal assistant') or पी.ए. is a very common designation. It carries a respectful, formal-workplace tone rather than a casual one.
Common Mistakes: 1) Learners sometimes treat सहायक (sahaayak) as invariant, but when referring to a woman it commonly shifts to सहायिका (sahaayikaa) rather than staying सहायक (sahaayak) as with true m/f nouns -- check the morphology table for the pattern. 2) In job titles like शोध सहायक (shodh sahaayak, 'research assistant'), the word stays uninflected as part of a compound title.
Sample Sentences:
वह मंत्री जी के निजी सहायक हैं। He is the minister's personal assistant.
(vah mantrii jii ke nijii sahaayak hain।)
Register: Formal -- Mood: Indicative -- Tense: Present -- Voice: Active
हमारे दफ़्तर में तीन सहायक काम करते हैं। Three assistants work in our office.
(hamaare daftar men tiin sahaayak kaam karte hain।)
Register: Neutral -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Active
क्या आपने अभी तक कोई सहायक नियुक्त किया? Have you appointed any assistant yet?
(kyaa aapne abhii tak koii sahaayak niyukt kiyaa?)
Register: Formal -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Active
कृपया अपने सहायक को यह फ़ाइल भेज दें। Please send this file to your assistant.
(kripyaa apne sahaayak ko yah faail bhej den।)
Register: Formal -- Mood: Imperative -- Voice: Active
प्रयोगशाला में एक सहायक की ज़रूरत है जो प्रयोगों में मदद कर सके। The laboratory needs an assistant who can help with the experiments.
(prayogshaalaa men ek sahaayak kii zaroorat hai jo prayogon men madad kar sake।)
Register: Formal -- Mood: Subjunctive -- Tense: Present -- Voice: Active
अगर मुझे एक अच्छा सहायक मिलता, तो काम बहुत आसान हो जाता। If I had gotten a good assistant, the work would have become much easier.
(agar mujhe ek achchhaa sahaayak miltaa, to kaam bahut aasaan ho jaataa।)
Register: Neutral -- Mood: Counterfactual -- Aspect: Habitual -- Voice: Active
उसका सहायक हमेशा समय पर सारे काम निपटा देता है। His assistant always finishes all the work on time.
(uskaa sahaayak hameshaa samay par saare kaam niptaa detaa hai।)
Register: Neutral -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Active
नई सहायक द्वारा भेजी गई रिपोर्ट कल शाम तक तैयार हो जाएगी। The report sent by the new assistant will be ready by tomorrow evening.
(naii sahaayak dvaaraa bhejii gaii riport kal shaam tak taiyaar ho jaaegii।)
Register: Formal -- Mood: Indicative -- Tense: Future -- Voice: Passive
बड़े साहब का सहायक बनना कोई आसान बात नहीं है। Becoming the boss's assistant is no easy matter.
(bade saahab kaa sahaayak bannaa koii aasaan baat nahiin hai।)
Register: Neutral -- Mood: Indicative -- Tense: Present -- Voice: Active
सर, यह मेरे सहायक हैं, इन्हें आप सारी जानकारी दे सकते हैं। Sir, this is my assistant, you can give him all the information.
(sar, yah mere sahaayak hain, inhen aap saarii jaankaarii de sakte hain।)
Register: Formal -- Mood: Indicative -- Tense: Present -- Voice: Active
उस समय मेरा कोई सहायक नहीं था, इसलिए सारा काम मुझे ख़ुद करना पड़ता था। At that time I had no assistant, so I had to do all the work myself.
(us samay meraa koii sahaayak nahiin thaa, islie saaraa kaam mujhe khud karnaa padtaa thaa।)
Register: Neutral -- Mood: Indicative -- Aspect: Habitual -- Tense: Past -- Voice: Active
Sense 2 : helpful, supportive, contributory (to something)
adjective Often used in the frame X के लिए सहायक (ke lie sahaayak, 'helpful for X') or X में सहायक (men sahaayak, 'helpful in X'), pairing with a following postposition to show what the help applies to.
Synonyms: मददगार (madadgaar), उपयोगी (upyogii, 'useful' -- narrower scope)
Frequency: medium
Cultural Note: This is the word you will meet in academic and official writing -- a textbook preface thanking people, or a report calling some factor 'सहायक' (sahaayak) to a result. It pairs naturally with abstract nouns (सहायक कारक, sahaayak kaarak, 'contributing factor') in a way मददगार (madadgaar) rarely does.
Common Mistakes: 1) Learners often reach for मददगार (madadgaar) in writing where सहायक (sahaayak) sounds more natural, especially in formal, academic, or written contexts -- सहायक (sahaayak) has a slightly more formal register.
Sample Sentences:
यह किताब परीक्षा की तैयारी में बहुत सहायक है। This book is very helpful in preparing for the exam.
(yah kitaab pariikshaa kii taiyaarii men bahut sahaayak hai।)
Register: Neutral -- Mood: Indicative -- Tense: Present -- Voice: Active
अनुशासन सफलता के लिए एक सहायक कारक माना जाता है। Discipline is considered a contributing factor to success.
(anushaasan saphaltaa ke lie ek sahaayak kaarak maanaa jaataa hai।)
Register: Formal -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Passive
यदि नियमित व्यायाम किया जाए, तो यह स्वास्थ्य के लिए अत्यंत सहायक होता है। If one exercises regularly, it proves extremely helpful for health.
(yadi niymit vyaayaam kiyaa jaae, to yah svaasthy ke lie atyant sahaayak hotaa hai।)
Register: Formal -- Mood: Subjunctive -- Aspect: Habitual -- Tense: Present -- Voice: Active
लेखक ने प्राक्कथन में उन सभी लोगों को धन्यवाद दिया जिनकी सलाह इस पुस्तक के लेखन में सहायक रही। In the preface, the author thanked all those whose advice was helpful in writing this book.
(lekhak ne praakkthan men un sabhii logon ko dhanyvaad diyaa jinkii salaah is pustak ke lekhan men sahaayak rahii।)
Register: Formal -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Active
रिपोर्ट में बताया गया कि बारिश की कमी फसल की बर्बादी में सहायक रही। The report stated that the lack of rain was a contributing factor in the crop's destruction.
(riport men bataayaa gayaa ki baarish kii kamii phasal kii barbaadii men sahaayak rahii।)
Register: Formal -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Passive
काश यह उपाय हमारी समस्या में सहायक होता। If only this measure had been helpful for our problem.
(kaash yah upaay hamaarii samasyaa men sahaayak hotaa।)
Register: Neutral -- Mood: Counterfactual -- Aspect: Habitual -- Voice: Active
सरकार चाहती है कि नई नीति उद्योगों के विकास में सहायक हो। The government wants the new policy to be helpful in the development of industries.
(sarkaar chaahtii hai ki naii niiti udyogon ke vikaas men sahaayak ho।)
Register: Formal -- Mood: Subjunctive -- Tense: Present -- Voice: Active
यह ऐप भाषा सीखने में सचमुच सहायक साबित होगा। This app will truly prove helpful in learning the language.
(yah aip bhaashaa siikhne men sachmuch sahaayak saabit hogaa।)
Register: Neutral -- Mood: Indicative -- Tense: Future -- Voice: Active
अनुभव और धैर्य, दोनों ही इस काम में सहायक हैं। Experience and patience, both are helpful in this work.
(anubhav aur dhairy, donon hii is kaam men sahaayak hain।)
Register: Neutral -- Mood: Indicative -- Tense: Present -- Voice: Active
Morphology
Noun
(sg.m.direct): सहायक (sahaayak)
(sg.m.oblique): सहायक (sahaayak)
(pl.m.direct): सहायक (sahaayak)
(pl.m.oblique): सहायकों (sahaaykon)
Adjective (invariant)
invariant: सहायक (sahaayak)