however

Từ điển Oxford Advanced Learner 8th

how·ever [however] BrE [haʊˈevə(r)] NAmE [haʊˈevər] adverb
1. used with an adjective or adverb to mean ‘to whatever degree’
• He wanted to take no risks, however small.
• She has the window open, however cold it is outside.
•However carefully I explained, she still didn't understand.  When ever is used to emphasize how, meaning ‘In what way or manner?’, it is usually written as a separate word
•How ever did you get here so quickly?
2. in whatever way
• However you look at it, it's going to cost a lot.
3. used to introduce a statement that contrasts with sth that has just been said
• He was feeling bad. He went to work, however, and tried to concentrate.
• We thought the figures were correct. However, we have now discovered some errors.

Language Bank:
however
Ways of saying ‘but’
▪ Politicians have promised to improve road safety. So far, however ▪, little has been achieved.
Despite ▪ clear evidence from road safety studies, no new measures have been introduced.
▪ Politicians have promised to improve road safety. In spite of this ▪ / Despite this ▪, little has been achieved so far.
Although ▪ politicians have promised to improve road safety, little has been achieved so far.
▪ Some politicians claim that the new transport policy has been a success. In fact ▪, it has been a total disaster.
▪ Government campaigns have had a measure of success, but the fact remains that ▪ large numbers of accidents are still caused by careless drivers.
Language Bank at ↑nevertheless

• Từ đồng nghĩa / Synonyms:
  nevertheless, withal, still, yet, all the same, even so, nonetheless, notwithstanding