| Inglês | Português |
| At the speed of light/sound | À velocidade da luz/som |
| By artificial light | Com luz artificial |
| By kerosene light | À luz de lampião |
| By the light of a kerosene lantern | À luz duma lamparina |
| He made light of the fact | Ele deu pouca importância ao fato |
| He ran a red light | Ele avançou o sinal |
| He replaced the light bulb with a new one | Ele trocou a lâmpada |
| He went (or drove) through the red light | Ele avançou o sinal |
| I am a light sleeper | Tenho sono leve |
| I am beginning to see the light | Estou começando a entender |
| I had a light breakfast | Tomei um cafezinho minguado |
| I woke at first light | Acordei ao raiar do dia |
| In a half light | À meia luz |
| In dim light | Com luz fraca |
| In poor light | Com pouca luz |
| In the light of science | À luz da ciência |
| In the light of this | Diante disso |
| In the light of this | Em vista disso |
| Let there be light | Haja luz (bíbl.) |
| Light travels faster than sound | A luz se propaga mais depressa que o som |
| Please put out the light before you go to sleep | Por favor, apague a luz antes de dormir |
| Put on the light ? Turn on the light | Acenda a luz |
| Put out the light | Apague a luz |
| Reading in dim light is bad for your eyes | Ler com luz fraca é prejudicial aos olhos |
| That throws light on the problem | Isto esclarece o problema |
| The light changed to green | O sinal abriu |
| The light changed to red | O sinal fechou |
| The light is not bright enough | A luz está fraca |
| The Moon does not give out light | A lua não emite luz própria |
| The traffic light turned green/red | O farol abriu/fechou |
| Turn off the light | Apague a luz |
| Turn off the light ? Put out the light | Desligue a luz |
| Turn on the light | Acenda a luz |
| Turn on the light ? Put on the light | Ligue a luz |
| Turn out the light when you are done reading | Desligue a luz ao terminar de ler |
| Under (or in the light of) the circumstances | Diante das circunstâncias |