on similar subject vs on a similar subject

Both phrases are correct, but they are used in slightly different contexts. 'On a similar subject' is more commonly used and is appropriate when referring to a specific subject. 'On similar subject' can be used in a more general sense.

Last updated: March 23, 2024 • 2967 views

This phrase is correct but less common. It can be used in a more general sense.

"on similar subject"

This phrase can be used when discussing topics that are related or comparable without specifying a particular subject.

Show examples from the web [+]

Another action on a similar subject is currently before the Court (concerning the adoption of Council Decision 2008/633/JHA on VIS).
The Commission would refer the Honourable Member to its answer to previous Written Question E-000599/2011 by Mr Patriciello on a similar subject.
Last year I had the pleasure of being rapporteur on a similar subject, and I think it is terribly important that we continue to draw attention to this issue.
Mr President, I cannot resist the pleasure of making of use of your presence to put to you another question on a somewhat similar subject.
Your rapporteur recalls that the European Parliament has already had occasion to deliver opinions several times on initiatives dealing with similar subject-matter.
I believe that we have very similar views on this subject and I share the concerns expressed in this House about the fears, expectations and even hopes of the general public in the changeover to the euro.
As they deal with similar subjects, Questions Nos 9 and 10 will be taken together.
The ECB may apply a call for expressions of interest if it intends to award several contracts which cover the same or similar subject-matter.
We have managed to get this rule incorporated in this directive too, thus, I believe, ensuring that two directives with similar subject-matter can - as we believe is essential - be handled in the same way by the legislators in the Member States.
As they deal with similar subjects, Questions Nos 62 and 63 will be answered together.
(c) If two or more arbitral tribunals constituted under the provisions of this Article are seized of requests with identical or similar subjects, they may inform themselves of the procedures for establishing the facts and take them into account as far as possible.
The plasma protein binding of voriconazole was similar in subjects with different degrees of renal impairment.
Initially seropositive and seronegative subjects reached similar titres after vaccination.
if no contract notice as referred to in Article 118(3) has been published, notice of a call for expressions of interest for contracts covering a similar subject with a value equal to or greater than the amount referred to in Article 128(1);
if no contract notice referred to in Article 21 has been published, notice of a call for expressions of interest for contracts covering a similar subject with a value equal to or greater than the amount referred to in Article 33(1);
a contract notice as referred to in Article 123(3), or a notice of a call for expressions of interest for contracts covering a similar subject with a value greater than the amount referred to in Article 137(1);
Gabapentin steady-state pharmacokinetics are similar for healthy subjects and patients with epilepsy receiving these antiepileptic agents.
The Cmax was similar between healthy subjects and patients with renal impairment.
Pharmacokinetics of prasugrel and its inhibition of platelet aggregation were similar in subjects with mild to moderate hepatic impairment compared to healthy subjects.
However, the safety profile of posaconazole between the Black and Caucasian subjects was similar.

Alternatives:

on related subjects
on comparable subjects
on similar topics

This phrase is correct and more commonly used. It is suitable when referring to a specific subject that is similar to another.

"on a similar subject"

Use this phrase when you want to specify a particular subject that is similar to another subject.

Show examples from the web [+]

Another action on a similar subject is currently before the Court (concerning the adoption of Council Decision 2008/633/JHA on VIS).
The Commission would refer the Honourable Member to its answer to previous Written Question E-000599/2011 by Mr Patriciello on a similar subject.
Last year I had the pleasure of being rapporteur on a similar subject, and I think it is terribly important that we continue to draw attention to this issue.
Mr President, I cannot resist the pleasure of making of use of your presence to put to you another question on a somewhat similar subject.
Your rapporteur recalls that the European Parliament has already had occasion to deliver opinions several times on initiatives dealing with similar subject-matter.
As they deal with similar subjects, Questions Nos 9 and 10 will be taken together.
The ECB may apply a call for expressions of interest if it intends to award several contracts which cover the same or similar subject-matter.
We have managed to get this rule incorporated in this directive too, thus, I believe, ensuring that two directives with similar subject-matter can - as we believe is essential - be handled in the same way by the legislators in the Member States.
As they deal with similar subjects, Questions Nos 62 and 63 will be answered together.
if no contract notice as referred to in Article 118(3) has been published, notice of a call for expressions of interest for contracts covering a similar subject with a value equal to or greater than the amount referred to in Article 128(1);
if no contract notice referred to in Article 21 has been published, notice of a call for expressions of interest for contracts covering a similar subject with a value equal to or greater than the amount referred to in Article 33(1);
a contract notice as referred to in Article 123(3), or a notice of a call for expressions of interest for contracts covering a similar subject with a value greater than the amount referred to in Article 137(1);
(c) If two or more arbitral tribunals constituted under the provisions of this Article are seized of requests with identical or similar subjects, they may inform themselves of the procedures for establishing the facts and take them into account as far as possible.
The plasma protein binding of voriconazole was similar in subjects with different degrees of renal impairment.
For a similar level of risk, the Agreement provides returns higher than alternative investments, and for similar returns it is subject to lower risks.
Initially seropositive and seronegative subjects reached similar titres after vaccination.
Gabapentin steady-state pharmacokinetics are similar for healthy subjects and patients with epilepsy receiving these antiepileptic agents.
The Cmax was similar between healthy subjects and patients with renal impairment.
Pharmacokinetics of prasugrel and its inhibition of platelet aggregation were similar in subjects with mild to moderate hepatic impairment compared to healthy subjects.
However, the safety profile of posaconazole between the Black and Caucasian subjects was similar.

Alternatives:

on a related subject
on a comparable subject
on a similar topic

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on similar subject vs on a similar subject