Pronunciation: [smˈa͡ɪlə] (IPA) 
The spelling of the word "smiler" can be explained using the International Phonetic Alphabet (IPA). It is pronounced as /ˈsmaɪlər/. The first syllable is pronounced as "sm" with an "s" sound followed by a "m" sound. The second syllable is pronounced with a long "i" sound as in "mile". The final syllable is pronounced with an "er" sound as in "her". Overall, the spelling of "smiler" is consistent with its pronunciation in English.
The term "smiler" typically refers to a person who frequently and genuinely smiles, or one who has a constant or an infectious smile. It is used to describe an individual who possesses a natural disposition to express positive emotions through a smiling facial expression.
A smiler is generally acknowledged as someone who consistently wears a happy or friendly expression, often illuminating a room with their cheerful demeanor. They may be individuals who find joy in the simplest things, radiating an air of contentment and putting others at ease. These individuals tend to have a positive outlook on life and easily connect with others due to their warm and approachable nature.
The term "smiler" can also be used in a more figurative sense to describe someone who is deceptive or hiding their true emotions behind a smile. In this context, a smiler is someone who appears pleasant on the surface but may conceal their true intentions or feelings. This can be seen as an act of concealing or disguising one's true emotions for various reasons, such as avoiding conflict or manipulation.
Overall, a smiler can be either a genuinely happy and friendly person who spreads positivity, or someone who hides their true emotions behind a mask of cheerfulness. The interpretations of the term are contingent upon the context in which it is used.
One who smiles.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "smiler" comes from the Middle English word "smilen", which itself derives from the Old English word "smilian". This Old English word is thought to have been influenced by the Proto-Germanic word "smil-, smiljan", meaning "to smile". The origin of this Proto-Germanic word is uncertain, but it is believed to be an onomatopoeic term, imitating the sound of a smile.
