Yoruba: Principle of Classification

Classification is possible because there are differences in words. The differences may come in many ways:
Meaning: Ile--House
                 Oko--Farm
                 Ilu----Town, etc

Size:        Agadagodo (5 syllables)---Padlock
                 Ogede (3 syllables)--------Banana
                 o  ( with the hign accent 'mi')-He, She,it
 
Functions: Yoruba words fall into six syntactic classes/parts of speech. These parts of speech are:
                 Noun----Oro oruko
                 Verb----Oro Ise
                 Qualifiers---Oro Asapejuwe
                 Modifiers---Oro Asaponle
                 Conjunctions---Oro asopo ( ati, abi , sugbon)
                 Introducers-----Oro isina