visa

名词 visa:

1. an endorsement made in a passport that allows the bearer to enter the country issuing it

动词 visa:

1. provide (a passport) with a visa
2. approve officially

1. We've had to cut a few corners to get your visa ready in time.
   我们得简化手续才能将你的签证及时办妥。
2. Have you the requisite visa to enter Canada?
   你有进入加拿大必备的签证吗?
3. He is applying to the Consul for a visa.
   他正向领事申请签证。
4. Do you mean I have to get a visa?
   你是说我务必去弄一份签证?
5. He asked for an extension of his visa.
   他申请延长签证有效期。
6. He experienced great difficulty in getting a visa to leave the country.
   他申请出国签证经历了很大的困难。
7. He has applied for an entry visa.
   他已申请入境签证。
8. I was eventually granted an exit visa.
   我终于获得了出境签证。

vi.sa

n.（名词）
An official authorization appended to a passport, permitting entry into and travel within a particular country or region.
签证：附加于护照的一种官方认可，允许进入和在某一特定的国家或地区内旅游
v.tr.（及物动词）
vi.saed,vi.sa.ing,vi.sas
To endorse or ratify (a passport).
在…背签或签发（护照）
To give a visa to.
给予签证

来源：
French
法语
short for Latin (carta) vosa [(the document has been) seen]
拉丁语 (carta) vosa的简写 [（文件已经被）看见的]
from feminine past participle of vidôre [to see] * see weid-
源自 vidôre的阴性过去式分词 [看见] *参见 weid-