You gather things when you bring several of them to the same place. A gathering of friends is a group of friends getting together. The person in the picture has gathered a handful of berries.
Gilding is the process of coating something else with a thin layer of gold. Once you have gilded something it is gilt. Gild is not the same as a guild.
Something glistens if it is softly shiny, particularly if it is wet. The cranberries in the picture are glistening.
You go when you move or do something, usually when you move away from something. For example, "go away", or "I am going to the shops". The opposite of go is stop. The past tense of go is went.
Grant is a Scottish name for boys. Grant means "great." The man in the picture is actor Grant Bowler.
An animal is grazing when it is eating grass and other plants that grow close to the ground, which is different to browsing. A graze is also an injury where you scrape off some layers of skin, usually by falling over onto a rough surface like asphalt.
You grieve when you feel very sad for losing someone or something that you loved. Another word for grieve is mourn.
You grind something by breaking parts of it off with friction. Metal or wood can be ground down by running a very rough surface over it, such as a grinding disc or sandpaper. Grinding will gradually change the shape of the thing being ground as the outer layer is removed. You grind herbs and spices in a mortar and pestle by crushing them against the inside of the bowl.