Interjection it is the invariable word that expresses emotions, sensations, moods; or that seeks to act on the interlocutor, leading him to adopt a certain behavior without, for this, making use of more elaborate linguistic structures.
• Ah! It can express pleasure, wonder, disappointment;
• Psst! It can indicate that you are trying to attract the interlocutor's attention, or that you want him to be silent.
Other interjections and interjective utterances can express:
• Happiness: oh!, ah!, hoo!, cheers!;
• Ache: oh!, oh!;
• Amazement, surprise: oh! oh! oh! oh! oh! oh! oh! oh! guys! oh oh oh! oh! oh!
• Call: hello, hello! hello! hello! psit! psit! oh!;
• Fear: uh! creed! crosses! Jesus! ouch!;
• Desire: I wish!, oxalá!, God willing!, I wish!;
• Silence request: psiu!, shut up!, be quiet!, closed mouth!;
• Stimulus: eia!, forward!, upa!, steady!, play!;
• Driving away: xô!, out!, street!, touch!, pass!, move away!;
• Relief: Phew! Phew! Phew!;
• Tiredness: Ufa!.
Understanding an interjection depends on analyzing the context in which it appears.
When the interjection is expressed by more than one word, it is called an interjective locution.
Well hell!, cross creed!, my life!, God help me!, God willing!
Monkeys bite me!
The interjection is considered a word-phrase, characterized as a separate structure. It has no syntactic function.
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By Marina Cabral
Specialist in Portuguese Language and Literature