First things first: morphemes.
A morpheme is the smallest lexical unit bearing meaning in a word, the basic component in a way. Affixes and suffixes are morphemes.
Eg: "Restart" is formed with two morphemes. Start [=begin], but also Re [=again].
That was the almost easy bit. Now, lemmas and lexemes... bit tougher.
A lemma is basically the word form you look for in a dictionary.
Eg: you just read the sentence "I like eating furniture - my son, on the other hand, eats plastic yucca plants. We eat in, most of the time." (I have no idea where you could read this, but still).
You do not know what "eating" and "eats" mean (also unlikely, but bear with me).
Grab your imaginary dictionary - you know there won't be anything under "eating" or "eats", so look at "eat".
"Eat" is the lemma here. It's the word you will find in a dictionary, it's the reference word, if you will.
Now, lexemes - treacherous bunch.
Lexemes are semantic units: 1 lexeme = 1 meaning. But there are variable lexemes (=that can have different forms). Moreover, lexemes don't have to be just one word. Ooh, ouch, I know.
Wait, wait! Don't run away just yet. Let's carry on with our previous gastronomical example, shall we? You've still got your imaginary dictionary in hand, have you?
You'll find neither eats or eating in the dictionary - they are variants of the lexeme EAT. The meaning is carried by EAT, not by the morphemes S or ING, right? That's a variable lexeme: it can have several forms.
Also, our omnivore above wrote "We eat in".
You'll have an entry for "in" but you won't find "eat in" there.
You'll have an entry for "eat", but it's not there either - not really. There's a subentry for "eat in". There you are.
Semantically speaking, eating in is not eating+in. It carries special meaning (=having dinner at home). So it's two words put together that have one particular meaning. EAT IN is a lexeme.
Basically: in a dictionary, headwords are lemmas andlexemes. Subentries, on the other hand, are just lexemes.
Hope that helped!
An example of a lexeme in the English language is the word "run." This lexeme includes various forms such as "running," "ran," and "runner."
A morpheme is a linguistic element that, when added to a word, modifies its meaning or creates a new word. Morphemes can be prefixes, suffixes, or roots that contribute to the overall interpretation of a word in a language.
No. Lexemes are different forms of the same word. Synonyms are different words with similar or overlapping meanings. Furthermore, synonyms are not exact equivalents: shout and scream do not mean the same thing.
Lexicon and dictionary are often used as synonyms. Technically, a lexicon is a dictionary that includes or focuses on lexemes. A lexeme, linguistically, is the base form of a word, from which a set of words is derived. For example, carve, carves, carved and carving are all components of the lexeme carve.Also, whereas dictionary always refers to a book, lexicon may additionally refer to a language's general inventory of words or lexemes, not necessarily written down or compiled.
run
One or many lexemes can belong to same token(category) and when lexeme recognized by a scanner to be in a some category that category returned as the token. A lexeme is a section of text, which represents a token. For example in case of a number there are many lexemes representing the same token; for example: "12", "14.8" or "1001". Such general tokens are described by patterns of text.
An example of a lexeme in the English language is the word "run." This lexeme includes various forms such as "running," "ran," and "runner."
A multiword lexeme is a lexeme made up of a sequence of two or more lexemes that has properties that are not predictable from the properties of the individual lexemes or their normal mode of combination.
lexeme is a small part of a program used in providing tokens to the source code given by the user
lexeme
A morpheme is a linguistic element that, when added to a word, modifies its meaning or creates a new word. Morphemes can be prefixes, suffixes, or roots that contribute to the overall interpretation of a word in a language.
this is tedius question.
• Not too many types of lexical errors - Illegal character - Ill-formed constant • How is it handled? - Discard and print a message - BUT: • If a character in the middle of a lexeme is wrong, do you discard the char or the whole lexeme? • Try to correct
No. Lexemes are different forms of the same word. Synonyms are different words with similar or overlapping meanings. Furthermore, synonyms are not exact equivalents: shout and scream do not mean the same thing.
Lexicon and dictionary are often used as synonyms. Technically, a lexicon is a dictionary that includes or focuses on lexemes. A lexeme, linguistically, is the base form of a word, from which a set of words is derived. For example, carve, carves, carved and carving are all components of the lexeme carve.Also, whereas dictionary always refers to a book, lexicon may additionally refer to a language's general inventory of words or lexemes, not necessarily written down or compiled.
Dilemma and Lemma are very different concepts. A lemma is the most basic form of a word, and the usual way one lists words in the dictionary. For example, of the words "running", "runner", "ran", et al., the lemma of these would be "run". Unlike an infinitive, which is the most basic form of a verb, lemmas apply to every form of word. A related concept to a lemma is "lexeme", which is not all that different, it is the most basic idea of a word. A lemma is simply a way of representing a lexeme. A dilemma (which comes from di-, meaning two, and -lemma, meaning a premise or idea,) is a strict choice between two propositions, ideas, outcomes, or something similar. Usually, the choices within a dilemma are undesirable. For instance, having to choose between being late for work or helping a friend with an unpleasant task is a dilemma. If the issue involves three choices, it is a trilemma; four choices, a tetralemma; five choices, a pentalemma, and so on. Generally, they are all referred to as syllogisms.