"Look after" means to take care of someone or something. This can involve providing for their needs, ensuring their safety, and offering support. For example, a parent may look after their child by feeding them, helping with homework, and making sure they are healthy. In a broader sense, "look after" can also apply to pets, plants, or even belongings. For instance, when you look after a dog, you might take it for walks, feed it, and give it attention. Similarly, looking after a houseplant involves watering it and placing it in the right light.