1. in a tight, stretched, or tense manner; with tension or firmness
The rope was pulled tautly across the frame.
A corda foi puxada tensamente através do marco.
2. in a concise, neat, or well-organized manner; without excess or looseness
She wrote tautly, using no unnecessary words.
Ela escrevia de forma concisa, sem usar palavras desnecessárias.
3. with visible tension or strain in facial expression or body posture
He stood tautly, his jaw clenched.
Ele estava em pé com tensão, sua mandíbula cerrada.