 Iconicity is a term used to refer to lexemes and other elements whose properties somehow closely correspond to the characteristics of the objects they refer to. In human language in a narrow sense, only a few items are said to possess such symbolic properties. In phonetics, for example, vowel magnitude relationships suggest that the larger the object, the more likely it is to involve open vowels, for example a, a, o, o, in words like large or German stark. Whereas smaller objects are more likely to involve a closed vowel such as e in tiny or German klein. Furthermore, open vowels are also more likely to be associated with round shapes and dark or gloomy moods like dark or German hart. Whereas closed vowel sounds are more likely to be associated with pointed shapes and happy moods like stick or German spitz. In morphology, examples from degree adjectives often show that the most extreme degree of their meaning is iconically represented by the word with the greatest number of phonemes. And in syntax, colossal order often mimics the natural order of ideas. Thus, sentences are easier to process if their colossal order is in line with the natural order of events than those where the colossal order is different. Even though iconicity is now widely acknowledged to be a significant factor at many levels of linguistic structure, in most cases however the relationship between lexemes and their meaning is an arbitrary one.