diff --git a/doc/src/sgml/glossary.sgml b/doc/src/sgml/glossary.sgml
index fe8def41d0..5f077c70e0 100644
--- a/doc/src/sgml/glossary.sgml
+++ b/doc/src/sgml/glossary.sgml
@@ -52,12 +52,12 @@
      <glossterm linkend="glossary-table">tables</glossterm>
      and other <glossterm linkend="glossary-relation">relations</glossterm>
      to help the <glossterm linkend="glossary-planner">query planner</glossterm>
-     to make decisions about how to execute
+     make decisions about how to execute
      <glossterm linkend="glossary-query">queries</glossterm>.
     </para>
     <para>
      (Don't confuse this term with the <literal>ANALYZE</literal> option
-     to the <xref linkend="sql-explain"/> command.)
+     of the <xref linkend="sql-explain"/> command.)
     </para>
     <para>
      For more information, see
@@ -175,7 +175,7 @@
    <glossdef>
     <para>
      Process within an <glossterm linkend="glossary-instance">instance</glossterm>,
-     which runs system- or user-supplied code.
+     which runs system or user-supplied code.
      Serves as infrastructure for several features in
      <productname>PostgreSQL</productname>, such as
      <glossterm linkend="glossary-replication">logical replication</glossterm>
@@ -227,7 +227,7 @@
    <glossterm>Bloat</glossterm>
    <glossdef>
     <para>
-     Space in data pages which does not contain current row versions,
+     Space in data pages that does not contain current row versions,
      such as unused (free) space or outdated row versions.
     </para>
    </glossdef>
@@ -256,9 +256,9 @@
    <glossterm>Buffer Access Strategy</glossterm>
    <glossdef>
     <para>
-     Some operations will access a large number of
+     Some operations access a large number of
      <glossterm linkend="glossary-data-page">pages</glossterm>.  A
-     <firstterm>Buffer Access Strategy</firstterm> helps to prevent these
+     <firstterm>Buffer Access Strategy</firstterm> helps prevent these
      operations from evicting too many pages from
      <glossterm linkend="glossary-shared-memory">shared buffers</glossterm>.
     </para>
@@ -320,7 +320,7 @@
     <para>
      A type of <glossterm linkend="glossary-constraint">constraint</glossterm>
      defined on a <glossterm linkend="glossary-relation">relation</glossterm>
-     which restricts the values allowed in one or more
+     that restricts the values allowed in one or more
      <glossterm linkend="glossary-attribute">attributes</glossterm>. The
      check constraint can make reference to any attribute of the same row in
      the relation, but cannot reference other rows of the same relation or
@@ -350,7 +350,7 @@
      are necessary to reach a checkpoint as defined above.
      This process is initiated when predefined conditions are met,
      such as a specified amount of time has passed, or a certain volume
-     of records has been written; or it can be invoked by the user
+     of records were written; or it can be invoked by the user
      with the command <command>CHECKPOINT</command>.
     </para>
     <para>
@@ -396,12 +396,11 @@
      The operating system user that owns the
      <glossterm linkend="glossary-data-directory">data directory</glossterm>
      and under which the <literal>postgres</literal> process is run.
-     It is required that this user exist prior to creating a new
+     This user is required to exist prior to creating a new
      <glossterm linkend="glossary-db-cluster">database cluster</glossterm>.
     </para>
     <para>
-     On operating systems with a <literal>root</literal> user,
-     said user is not allowed to be the cluster owner.
+     The user <literal>root</literal> is not allowed to be the cluster owner.
     </para>
    </glossdef>
   </glossentry>
@@ -424,7 +423,7 @@
      The act of finalizing a
      <glossterm linkend="glossary-transaction">transaction</glossterm> within
      the <glossterm linkend="glossary-database">database</glossterm>, which
-     makes it visible to other transactions and assures its
+     makes it visible to other transactions and ensures its
      <glossterm linkend="glossary-durability">durability</glossterm>.
     </para>
     <para>
@@ -468,13 +467,13 @@
    <glossterm>Consistency</glossterm>
    <glossdef>
     <para>
-     The property that the data in the
+     The property that data in the
      <glossterm linkend="glossary-database">database</glossterm>
-     is always in compliance with
+     is always compliant with
      <glossterm linkend="glossary-constraint">integrity constraints</glossterm>.
-     Transactions may be allowed to violate some of the constraints
-     transiently before it commits, but if such violations are not resolved
-     by the time it commits, such a transaction is automatically
+     Transactions may allow constraints to be violated
+     temporarily, but violations must be resolved before the transaction
+     commits or it will be automatically
      <glossterm linkend="glossary-rollback">rolled back</glossterm>.
      This is one of the <acronym>ACID</acronym> properties.
     </para>
@@ -549,7 +548,7 @@
     </para>
     <para>
      See also <glossterm linkend="glossary-cluster-owner">cluster owner</glossterm>,
-     the operating-system owner of a cluster,
+     the operating system owner of a cluster,
      and <glossterm linkend="glossary-bootstrap-superuser">bootstrap superuser</glossterm>,
      the <productname>PostgreSQL</productname> owner of a cluster.
     </para>
@@ -619,7 +618,7 @@
    <glossterm>Datum</glossterm>
    <glossdef>
     <para>
-     The internal representation of one value of an <acronym>SQL</acronym>
+     The internal representation of one value of a <acronym>SQL</acronym>
      data type.
     </para>
    </glossdef>
@@ -629,7 +628,7 @@
    <glossterm>Delete</glossterm>
    <glossdef>
     <para>
-     An <acronym>SQL</acronym> command which removes
+     A <acronym>SQL</acronym> command that removes
      <glossterm linkend="glossary-tuple">rows</glossterm> from a given
      <glossterm linkend="glossary-table">table</glossterm>
      or <glossterm linkend="glossary-relation">relation</glossterm>.
@@ -692,7 +691,7 @@
    <glossterm>File segment</glossterm>
    <glossdef>
     <para>
-     A physical file which stores data for a given
+     A physical file that stores data for a given
      <glossterm linkend="glossary-relation">relation</glossterm>.
      File segments are limited in size by a configuration value
      (typically 1 gigabyte),
@@ -785,7 +784,7 @@
     <para>
      Each of the separate segmented file sets in which a relation is stored.
      The <firstterm>main fork</firstterm> is where the actual data resides.
-     There also exist two secondary forks for metadata:
+     There are two secondary forks for metadata:
      the <glossterm linkend="glossary-fsm">free space map</glossterm>
      and the <glossterm linkend="glossary-vm">visibility map</glossterm>.
      <glossterm linkend="glossary-unlogged">Unlogged relations</glossterm>
@@ -838,7 +837,7 @@
    <glossterm>Grant</glossterm>
    <glossdef>
     <para>
-     An <acronym>SQL</acronym> command that is used to allow a
+     A <acronym>SQL</acronym> command that is used to allow a
      <glossterm linkend="glossary-user">user</glossterm> or
      <glossterm linkend="glossary-role">role</glossterm> to access
      specific objects within the <glossterm linkend="glossary-database">database</glossterm>.
@@ -898,7 +897,7 @@
    <glossterm>Insert</glossterm>
    <glossdef>
     <para>
-     An <acronym>SQL</acronym> command used to add new data into a
+     A <acronym>SQL</acronym> command used to add new data into a
      <glossterm linkend="glossary-table">table</glossterm>.
     </para>
     <para>
@@ -1385,7 +1384,7 @@
      A <glossterm linkend="glossary-relation">relation</glossterm> transmitted
      from a <glossterm linkend="glossary-backend">backend process</glossterm>
      to a <glossterm linkend="glossary-client">client</glossterm> upon the
-     completion of an <acronym>SQL</acronym> command, usually a
+     completion of a <acronym>SQL</acronym> command, usually a
      <command>SELECT</command> but it can be an
      <command>INSERT</command>, <command>UPDATE</command>, or
      <command>DELETE</command> command if the <literal>RETURNING</literal>
@@ -1867,8 +1866,8 @@
    <glossterm>Trigger</glossterm>
    <glossdef>
     <para>
-     A <glossterm linkend="glossary-function">function</glossterm> which can
-     be defined to execute whenever a certain operation (<command>INSERT</command>,
+     A <glossterm linkend="glossary-function">function</glossterm> that
+     executes whenever a certain operation (<command>INSERT</command>,
      <command>UPDATE</command>, <command>DELETE</command>,
      <command>TRUNCATE</command>) is applied to a
      <glossterm linkend="glossary-relation">relation</glossterm>.
@@ -1942,7 +1941,7 @@
    <glossterm>Update</glossterm>
    <glossdef>
     <para>
-     An <acronym>SQL</acronym> command used to modify
+     A <acronym>SQL</acronym> command used to modify
      <glossterm linkend="glossary-tuple">rows</glossterm>
      that may already exist in a specified <glossterm linkend="glossary-table">table</glossterm>.
      It cannot create or remove rows.