In French, most words ending in "-ier" are masculine, but not all of them. However, if the following table, all the words are masculine, this is because all of these words refer to trees or plants, which are generally considered masculine in French. It's worth noting that in French, the gender of a noun is not always predictable based on its meaning or spelling, and there are many exceptions and irregularities.
| Olivier | Olive tree | J'ai acheté de l'huile d'olive chez l'olivier. (I bought some olive oil from the olive tree.) |
| Pommier | Apple tree | Les enfants ont cueilli des pommes dans le pommier. (The children picked apples from the apple tree.) |
| Cerisier | Cherry tree | Il y a un cerisier dans le jardin qui donne beaucoup de fruits. (There's a cherry tree in the garden that produces a lot of fruit.) |
| Noyer | Walnut tree | Les noix viennent du noyer. (Walnuts come from the walnut tree.) |
| Pêcher | Peach tree | Nous avons mangé des pêches cueillies dans le pêcher. (We ate peaches picked from the peach tree.) |
| Oranger | Orange tree | Il y a un oranger dans la cour qui sent très bon. (There's an orange tree in the courtyard that smells very good.) |
| Poirier | Pear tree | Les poires viennent du poirier. (Pears come from the pear tree.) |
| Arbousier | Strawberry tree | L'arbousier donne des fruits en forme de petites fraises. (The strawberry tree produces fruit in the shape of small strawberries.) |
| Noisetier | Hazelnut tree | Les noisettes viennent du noisetier. (Hazelnuts come from the hazelnut tree.) |
| Peuplier | Poplar tree | Les feuilles des peupliers tremblent au vent. (The leaves of the poplar trees tremble in the wind.) |
| Limettier | Lime tree | On peut faire une tisane avec les fleurs de limettier. (You can make a herbal tea with the flowers of the lime tree.) |
| Citronnier | Lemon tree | J'ai planté un citronnier dans mon jardin. (I planted a lemon tree in my garden.) |
| Framboisier | Raspberry bush | Les framboises poussent sur les rameaux du framboisier. (Raspberries grow on the branches of the raspberry bush.) |
| Cassissier | Blackcurrant bush | Les cassis sont des petits fruits noirs qui poussent sur le cassissier. (Blackcurrants are small black fruits that grow on the blackcurrant bush.) |
