diff --git a/src/core/net/dns_types.hpp b/src/core/net/dns_types.hpp
index a054273af..ae87efda7 100644
--- a/src/core/net/dns_types.hpp
+++ b/src/core/net/dns_types.hpp
@@ -129,16 +129,16 @@ public:
     void SetType(Type aType) { WriteBits<uint8_t, kQrFlagMask>(mFlags[0], static_cast<uint8_t>(aType)); }
 
     /**
-     * Defines types of query.
+     * Defines types of query (OpCode).
      */
     enum QueryType : uint8_t
     {
-        kQueryTypeStandard = 0,
-        kQueryTypeInverse  = 1,
-        kQueryTypeStatus   = 2,
-        kQueryTypeNotify   = 4,
-        kQueryTypeUpdate   = 5,
-        kQueryTypeDso      = 6,
+        kQueryTypeStandard = 0, ///< Query
+        kQueryTypeInverse  = 1, ///< IQuery
+        kQueryTypeStatus   = 2, ///< Status
+        kQueryTypeNotify   = 4, ///< Notify
+        kQueryTypeUpdate   = 5, ///< Update
+        kQueryTypeDso      = 6, ///< DNS Stateful Operations
     };
 
     /**
@@ -226,25 +226,25 @@ public:
     void SetRecursionAvailableFlag(void) { SetBit<uint8_t>(mFlags[1], kRaFlagOffset); }
 
     /**
-     * Defines response codes.
+     * Defines response codes (RCODEs).
      */
     enum Response : uint8_t
     {
-        kResponseSuccess         = 0,  ///< Success (no error condition).
-        kResponseFormatError     = 1,  ///< Server unable to interpret request due to format error.
-        kResponseServerFailure   = 2,  ///< Server encountered an internal failure.
-        kResponseNameError       = 3,  ///< Name that ought to exist, does not exists.
-        kResponseNotImplemented  = 4,  ///< Server does not support the query type (OpCode).
-        kResponseRefused         = 5,  ///< Server refused to perform operation for policy or security reasons.
-        kResponseNameExists      = 6,  ///< Some name that ought not to exist, does exist.
-        kResponseRecordExists    = 7,  ///< Some RRset that ought not to exist, does exist.
-        kResponseRecordNotExists = 8,  ///< Some RRset that ought to exist, does not exist.
-        kResponseNotAuth         = 9,  ///< Service is not authoritative for zone.
-        kResponseNotZone         = 10, ///< A name is not in the zone.
-        kDsoTypeNotImplemented   = 11, ///< DSO TLV TYPE is not implemented.
-        kResponseBadName         = 20, ///< Bad name.
-        kResponseBadAlg          = 21, ///< Bad algorithm.
-        kResponseBadTruncation   = 22, ///< Bad truncation.
+        kResponseSuccess         = 0,  ///< Success (no error condition, NoError).
+        kResponseFormatError     = 1,  ///< Server unable to interpret request due to format error (FormErr).
+        kResponseServerFailure   = 2,  ///< Server encountered an internal failure (ServFail).
+        kResponseNameError       = 3,  ///< Name that ought to exist, does not exist (NXDomain).
+        kResponseNotImplemented  = 4,  ///< Server does not support the query type or OpCode (NotImp).
+        kResponseRefused         = 5,  ///< Server refused to perform operation for policy/security reasons (Refused).
+        kResponseNameExists      = 6,  ///< Some name that ought not to exist, does exist (YXDomain).
+        kResponseRecordExists    = 7,  ///< Some RRset that ought not to exist, does exist (YXRRSet).
+        kResponseRecordNotExists = 8,  ///< Some RRset that ought to exist, does not exist (NXRRSet).
+        kResponseNotAuth         = 9,  ///< Service is not authoritative for zone (NotAuth).
+        kResponseNotZone         = 10, ///< A name is not in the zone (NotZone).
+        kDsoTypeNotImplemented   = 11, ///< DSO TLV TYPE is not implemented (DSOTYPENI).
+        kResponseBadName         = 20, ///< Bad name (BADNAME).
+        kResponseBadAlg          = 21, ///< Bad algorithm (BADALG).
+        kResponseBadTruncation   = 22, ///< Bad truncation (BADTRUNC).
     };
 
     /**
@@ -1387,14 +1387,14 @@ class ResourceRecord
     friend class OptRecord;
 
 public:
-    // Resource Record Types.
+    // Resource Record Types (RRTypes).
     static constexpr uint16_t kTypeZero  = 0;   ///< Zero as special indicator for the SIG RR (SIG(0) from RFC 2931).
-    static constexpr uint16_t kTypeA     = 1;   ///< Address record (IPv4).
+    static constexpr uint16_t kTypeA     = 1;   ///< IPv4 address record (A).
     static constexpr uint16_t kTypeNs    = 2;   ///< NS record (an authoritative name server).
     static constexpr uint16_t kTypeCname = 5;   ///< CNAME record.
     static constexpr uint16_t kTypeSoa   = 6;   ///< SOA record (start of (zone of) authority).
     static constexpr uint16_t kTypePtr   = 12;  ///< PTR record.
-    static constexpr uint16_t kTypeMx    = 15;  ///< MAX record (mail exchange).
+    static constexpr uint16_t kTypeMx    = 15;  ///< MX record (mail exchange).
     static constexpr uint16_t kTypeTxt   = 16;  ///< TXT record.
     static constexpr uint16_t kTypeRp    = 17;  ///< RP record (Responsible Person).
     static constexpr uint16_t kTypeAfsdb = 18;  ///< AFSDB record (AFS Data Base location).
@@ -1402,15 +1402,15 @@ public:
     static constexpr uint16_t kTypeSig   = 24;  ///< SIG record.
     static constexpr uint16_t kTypeKey   = 25;  ///< KEY record.
     static constexpr uint16_t kTypePx    = 26;  ///< PX record (X.400 mail mapping information).
-    static constexpr uint16_t kTypeAaaa  = 28;  ///< IPv6 address record.
+    static constexpr uint16_t kTypeAaaa  = 28;  ///< IPv6 address (AAAA) record.
     static constexpr uint16_t kTypeSrv   = 33;  ///< SRV locator record.
     static constexpr uint16_t kTypeKx    = 36;  ///< KX record (Key Exchanger).
     static constexpr uint16_t kTypeDname = 39;  ///< DNAME record.
-    static constexpr uint16_t kTypeOpt   = 41;  ///< Option record.
+    static constexpr uint16_t kTypeOpt   = 41;  ///< Option (OPT) record.
     static constexpr uint16_t kTypeNsec  = 47;  ///< NSEC record.
-    static constexpr uint16_t kTypeAny   = 255; ///< ANY record.
+    static constexpr uint16_t kTypeAny   = 255; ///< ANY (*) record.
 
-    // Resource Record Class Codes.
+    // Resource Record Class Codes (CLASS).
     static constexpr uint16_t kClassInternet = 1;   ///< Class code Internet (IN).
     static constexpr uint16_t kClassNone     = 254; ///< Class code None (NONE) - RFC 2136.
     static constexpr uint16_t kClassAny      = 255; ///< Class code Any (ANY).