1
- a person or thing that sucks, in particular吮吸的人（或物）, 尤指：
1.1
- a rubber cup that adheres to a surface by suction橡皮吸杯。
1.2
- a flat or concave organ enabling an animal to cling to a surface by suction吸盘。
1.3
- the piston of a suction pump（空吸泵上的）活塞。
1.4
- a pipe through which liquid is drawn by suction吸管。
2
- informal a gullible or easily deceived person〈非正式〉容易受骗的人。
2.1
- ( a sucker for) a person especially susceptible to or fond of a specified thing容易入迷的人：
I always was a sucker for a good fairy tale.
我从前一直是一个对精彩的神话故事很着迷的人。
3
- informal, chiefly US a thing or person not specified by name〈非正式, 主美〉（不指名的）人（或事）：
he's one strong sucker.
他是个强壮的人。
4
- Botany a shoot springing from the base of a tree or other plant, especially one arising from the root below ground level at some distance from the main stem or trunk【植】根出条。
4.1
- a side shoot from an axillary bud, as in tomato plants or maize（西红柿或玉米等的）腋芽。
5
- a freshwater fish with thick lips that are used to suck up food from the bottom, native to North America and Asia亚口鱼。
5.1
- Family Catostomidae: many genera and species.亚口鱼科：多属, 多种。
6
- N. Amer. informal a lollipop〈北美, 非正式〉棒糖; 冰棒。
1
- no obj. Botany (of a plant) produce suckers【植】（植物）长出根出条：
it spread rapidly after being left undisturbed to sucker.
由于任它长根出条不加干预, 它迅速地蔓延开了。
2
- with obj. informal, chiefly US fool or trick (someone)〈非正式, 主美〉愚弄, 欺骗：
they got suckered into accepting responsibility.
他们被欺骗而承担了责任。