 وأقولوا في القرآن ما جاءت به آياته فهو الكاريم المنزاله وأقولوا قال الله جل جلاله والمصطفة الهدي ولا أتأواله أسأل ماذا is the definition of الإسلام التوحيد لا إله إلا الله and worship please provide definitions in English and Arabic الحمد لله رب العالمين والصلاة والسلام على عبد الله ورسوله نبينا محمد وعلى آله وصحبه أجمعين before answering this question I think it is really important to note something about definitions in general and that is to say that definitions exist in order to make understanding things easier and generally the early generation of Muslims would typically rather than look for definitions that were جامع مانق that were comprehensive and exclusive they would usually give examples because the purpose of the definition was to assist and aid a person to understand in later times what happened is that people became very picky about definitions they insisted the definitions be absolutely comprehensive and absolutely exclusive and sometimes the definition might be actually more complicated than just understanding what is being said or just having an example given for what has been said so the reason I started with that is just so that a person doesn't get lost in definitions and doesn't become confused by them so if a definition is something that you are struggling to understand it may be better to take an example from a definition that looks at it from a different angle or gives a different kind of example so with that being said let us start with the definition of the word الاسلام the definition of the word الاسلام so الاسلام is الاستسلام لله بالقبول والإنقياد له بالطاعة والبراعة من الشرك والأهل الاسلام is الاستسلام الاستسلام it means submission and a lot of people think that the word الاسلام means peace however the word الاسلام actually means الاستسلام submission إذ قال له ربه أسلم قال أسلم لربي العالمين when his lord said to him submit he said I have submitted to the lord of the worlds so the word الاسلام it means الاستسلام okay submission to whom الاستسلام لله submission to Allah بالقبول with complete acceptance والإنقياد له بالطاعة and submission to him or surrender to him in obedience and when we say obedience that includes doing everything that Allah commanded us to do and keeping away from everything that Allah commanded us to keep away from so when you submit to Allah in Islam that entails that you take on board the what comes out of that submission which is obedience to Allah in doing what he commanded and keeping away from what he prohibited والبراعة ومن الشرك والأهل and being free of and disassociated from polytheism and its people so if we go back again submission to Allah with acceptance surrender to Allah through obedience and to be disassociated from and different from and distant from polytheism of all types whatever kind of association of partner with Allah it is likewise from the people who do so and that is one of the definitions that are put forward for Islam and it's quite a comprehensive definition which gives us a good understanding of the word so now let's come along to the word توحيد so the word توحيد is a verbal noun from the verb وَحَدَ يُوَحِدُ وَحَدَ in the language means to make something one or to consider something to be one so when a country is unified it becomes one different states become one they talk about توحيد ودولة the time when the country became one so this word توحيد it means to be one to believe something to be one to affirm something as being one now when we look at the توحيد of الله عز و جل we see that in a technical sense we are talking about إفراد الله تعالى that we are talking about الله عز و جل being alone in more than one aspect in his ربوبية his lordship so there is no one who does what he does and in his worship so there is no one deserving of worship except him and in his names and attributes لَيْسَكَمِثْلِهِ شَيْئُنْ وَهُوَسْ سَمِيرُ الْبَاصِيرِ there is nothing like him and he is the all hearing the all seeing so when we bring these aspects together and we talk about إفراد الله عز و جل making Allah عز و جل alone in his ربوبية in his ألوهية in his أسماء and his صفات then this is the meaning of a توحيد in its most comprehensive sense that Allah عز و جل is alone in doing what he does in his lordship creation command in doing life causing death decree and so on Allah is alone in his right to be worshipped alone and with no partner and Allah عز و جل is alone in having his beautiful names and lofty attributes so that takes us to the meaning of the word توحيد what about the definition of لا إله إلا الله so I'm not sure there's a definition in that sense of لا إله إلا الله but perhaps there's an explanation of لا إله إلا الله لا إله إلا الله is made up of is a sentence which is made up of two parts the first part لا إله and the second part إلا الله so لا إله it means there is no God or there is no object of worship because الإله in the Arabic language is المعبود that which is worshiped so لا إله it means لا معبودة there is nothing which is worshiped إلا الله except Allah now if we were to take the sentence like that obviously the beginning is نفين it is to reject the worship of everything and the second half is إلا الله is إثبات إلا الله is a firm but if we were to only take the rejection we would be left with atheism because if a person were to say لا إله and then stop without إله الله that would be atheism and just to say that Allah is deserving of worship that encompasses polytheism because many polytheists worship Allah as well as others not only when you say لا إله إلا الله and you join between إثبات between negation and affirmation that you bring توحيد you bring the oneness of Allah it's also really important to say that there has to be a word that is understood from the sentence because if we say there is nothing that is worshiped except Allah in reality many things are worshiped besides Allah people worship the sun and the dead and the living people worship many things so we have to have a word here which is understood from the sentence which is the likes of بحق لا إله إي بحق إلا الله there is no God there is no object of worship that is rightfully worshiped except Allah there is no rightful object of worship except Allah except Allah as for the word worship itself which is the last part of the question what is the definition of worship so worship is one of those things that it depends on what aspect of worship you look at so there are some definitions of worship which looked at worship from a very broad sense and from this is the definition of he said that it is a comprehensive term for everything that Allah loves and is pleased with from statements and actions whether open or hidden that is a very good comprehensive and detailed look at without narrowing it down to for example which is the word the word the word the word or the عبادة which has its root in customs or the عبادة which has its root in pure and absolute worship of Allah so without just looking at it from a general sense that's a good definition if we want to be a bit more specific and we want to look at it with a bit more of a we want to kind of bring our focus into exclude some of the things that that first definition brings in and to bring in a more sort of precise definition which particularly focuses on the عبادة which are pure عبادة then perhaps the definition of the great scholar المعلم رحمه الله تعالى when he said he said it is a voluntary submission or a voluntary humiliation someone to humble themselves completely and lower themselves completely but to do so voluntarily يطلبوا به seeking thereby نفعون غيبي seeking thereby an unseen benefit when the things which are only sought from Allah سبحانه و تعالى so voluntary humility or voluntary submission seeking thereby and a benefit from the benefits of the unseen and ultimately if you look at all of these definitions of worship and really in a question like this it is not really possible to answer in a very comprehensive way but if you look at the different definitions of worship what you see is that each one looks at it من مجتمع أستوى و من صفحة أخرى some of them focus on Heybada which are محبة which are absolute and pure and they have no route in customs and tradition and things like that and some of them look at Heybada from a very broad perspective, Heybada which are محبة and هير المحبة which are ويجب أن يكون هناك تفنشين يجب أن تأخذ كل شخص في المنطقة التي كانت في المنطقة التي كانت تعطيها. إن شاء الله تعالى أنها مفيدة جيدة لأي مدينة من فعل إسلام للتوحيد، for لا إله إلا الله وفعل أسوار، which is a bad. That's what Allah made easy for me to mention and Allah knows best والصلاة والسلام عليكم محمد وعلى أهله وصحبه أجمعي