名詞 visa:

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

動詞 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.
   我們得簡化手續(xù)才能將你的簽證及時辦妥。
2. Have you the requisite visa to enter Canada?
   你有進入加拿大必備的簽證嗎?
3. He is applying to the Consul for a visa.
   他正向領(lǐng)事申請簽證。
4. Do you mean I have to get a visa?
   你是說我務(wù)必去弄一份簽證?
5. He asked for an extension of his visa.
   他申請延長簽證有效期。
6. He experienced great difficulty in getting a visa to leave the country.
   他申請出國簽證經(jīng)歷了很大的困難。
7. He has applied for an entry visa.
   他已申請入境簽證。
8. I was eventually granted an exit visa.
   我終于獲得了出境簽證。

vi.sa

n.（名詞）
An official authorization appended to a passport, permitting entry into and travel within a particular country or region.
簽證：附加于護照的一種官方認可，允許進入和在某一特定的國家或地區(qū)內(nèi)旅游
v.tr.（及物動詞）
vi.saed,vi.sa.ing,vi.sas
To endorse or ratify (a passport).
在…背簽或簽發(fā)（護照）
To give a visa to.
給予簽證

來源：
French
法語
short for Latin (carta) vosa [(the document has been) seen]
拉丁語 (carta) vosa的簡寫 [（文件已經(jīng)被）看見的]
from feminine past participle of vidôre [to see] * see weid-
源自 vidôre的陰性過去式分詞 [看見] *參見 weid-