Why was the report on civil partnerships (Radio 4 Monday, 6.00 news) covered by the religious affairs correspondent? This is a secular matter.

An interesting point. And the answer is, I fear, very mundane. We used the religious affairs correspondent on this story for the simple reason that he alerted the programme to its importance and interest, and he offered to file on it. There was nothing more to it.

I, of course, accept that this is a secular matter. It may be of interest to note that BBC correspondents do cover a wide number of issues within their portfolios; none more so than the religious affairs correspondent. However I do think that, on reflection, it would have been better to have introduced the report with the words "This report from Robert Piggot", rather than what we did - "This report from our religious affairs correspondent Robert Piggot".

It's a reminder that certain conditions can be wrongly characterised in the public mind - or even if they are accurately characterised, their use can be insensitive. Other examples include "Tourettes" for being foul-mouthed, "schizophrenic" for having a split personality. And it's a reminder perhaps that people who are affected by those conditions, either directly or indirectly, can be irritated when they are carelessly used as journalistic shorthand.

Arranged marriages have a long and successful history in this country and elsewhere. I am sure I read figures that suggested the divorce rate among couples whose marriage had been arranged by a third party (usually their families) was lower than those of couples who fended for themselves, so to speak.

Forced marriages are completely different. By their very nature they involve compulsion of at least one - if not both - of the people involved as well physical threats and intimidation. They could well be the subject of serious criminal charges, such as rape.

It is no minor matter to confuse the two.

The correspondent used the word déjà vu to mean that the people of Bath would be reliving something they had already experienced.

However, according to the dictionary, déjà vu does not mean that at all; in fact rather the reverse. It means the experience of thinking you are reliving some event or feeling when you have not; you are experiencing it for the first time.

But this raises the question - when does a word change its meaning? Words are for conveying understanding, never more so than in radio reports when the audience has only one chance to hear what is being said. So if most people use a word to mean one thing, does that become its true meaning?

Tim Bailey is editor of the Radio 4 Six O'Clock News

Tim Bailey is editor of the Radio 4 Six O'Clock News

The first paragraph of the original report included this phrase: "The camera lingers over the bodies of two American soldiers. Their torsos are terribly mutilated, one is headless, the head is swung in front of the camera. Now and then a foot appears to prod a lifeless corpse."

This was cut as I thought it was too strong for a teatime audience (although it is only fair to say not everyone here agreed). And this is what was broadcast: "The camera lingers over the bodies of two American soldiers. Their torsos are terribly mutilated; one is headless."

My own view was that conveyed a sufficiently powerful image.

Tim Bailey is editor of the Radio 4 Six O'Clock News

There is no BBC rule about using Mumbai, just guidelines. It is up to each individual programme to decide what to say. Most use 'Mumbai' and nothing else; a few use 'Mumbai, formerly known as Bombay'. The thinking is the city has changed its name (some time ago) and Mumbai is now well known to most, if not all, the audience.

Tim Bailey is editor of the Radio 4 Six O'Clock News

The first thing to acknowledge is that for a section of the radio audience (primarily listeners to Radio Three and Radio Four, but not exclusively) the dictionary use of words is of vital importance; these listeners get very annoyed at errors or at sloppiness and they write in making their views know with what is known as great vigour. It is a foolish and arrogant broadcaster who ignores these people and their views. I most certainly don't.

Of course, most broadcasters are not foolish and they make every effort to use words correctly and to acknowledge the basic rules of grammar. And my own experience is that correspondents are keen to be told they have made a mistake - and equally keen not to repeat it. I have not come across a correspondent saying this sort of stuff is not worthy of attention.

This can be taken to extremes. I remember vividly a war correspondent filing on a phone from the battlefront with the sound of bullets and shells exploding all around him. He filed and the only response from the Radio Four desk was a producer shouting back through the sounds of war: "You have misused the word 'ironically'; you mean 'coincidentally'."

All radio broadcasters are aware that the listener usually gets only one chance to hear what they are saying; it must be clear, concise and easily understandable; there is usually not a second chance. And rules of grammar are, for the most part, agreed to ensure clarity, concision and comprehension. So there is no problem. All broadcasters should obey all the rules.

Up to a point. Radio news broadcasts are not compiled like that. They quite often deliberately break the rules. And the reason why they do so is to enhance clarity, concision and comprehension. And I think they are right. Radio news broadcasts are the illegitimate child of demotic speech and formal prose. The end - in this case informing the listeners - justifies the means: bending, if not breaking, the rules.

And of course the language changes all the time. This is a whole issue in itself. When does a word or phrase enter the mainstream; when does it become acceptable? Decisions on individual words are taken all the time. And I know a lot of people do not like the decisions. I know because they write in to tell me. The people who accept the changes, of course, don't.

So the debate goes on. As it should, and we should all take part.

Tim Bailey is editor of the Radio 4 Six O'clock News

You can send us your thoughts or queries about the language used in any of our news programmes by leaving a comment below or using the form on the right hand side of the page.