diff --git a/beacon_node/beacon_chain/src/beacon_chain.rs b/beacon_node/beacon_chain/src/beacon_chain.rs
index 773e761ecae..94fa175c672 100644
--- a/beacon_node/beacon_chain/src/beacon_chain.rs
+++ b/beacon_node/beacon_chain/src/beacon_chain.rs
@@ -3246,7 +3246,7 @@ impl<T: BeaconChainTypes> BeaconChain<T> {
     }
 
     /// Checks if the provided data column can make any cached blocks available, and imports immediately
-    /// if so, otherwise caches the blob in the data availability checker.
+    /// if so, otherwise caches the data column in the data availability checker.
     async fn check_gossip_data_column_availability_and_import(
         self: &Arc<Self>,
         data_column: GossipVerifiedDataColumn<T>,
diff --git a/beacon_node/beacon_chain/src/block_verification_types.rs b/beacon_node/beacon_chain/src/block_verification_types.rs
index bd840b9337e..e9d216b6ee8 100644
--- a/beacon_node/beacon_chain/src/block_verification_types.rs
+++ b/beacon_node/beacon_chain/src/block_verification_types.rs
@@ -68,7 +68,7 @@ enum RpcBlockInner<E: EthSpec> {
     /// This variant is used with parent lookups and by-range responses. It should have all blobs
     /// ordered, all block roots matching, and the correct number of blobs for this block.
     BlockAndBlobs(Arc<SignedBeaconBlock<E>>, BlobSidecarList<E>),
-    /// This variant is used with parent lookups and by-range responses. It should have all blobs
+    /// This variant is used with parent lookups and by-range responses. It should have all data columns
     /// ordered, all block roots matching, and the correct number of data columns for this block.
     BlockAndDataColumns(Arc<SignedBeaconBlock<E>>, DataColumnSidecarList<E>),
 }
diff --git a/beacon_node/beacon_chain/src/data_availability_checker.rs b/beacon_node/beacon_chain/src/data_availability_checker.rs
index 2fdab08f039..7635df21bc2 100644
--- a/beacon_node/beacon_chain/src/data_availability_checker.rs
+++ b/beacon_node/beacon_chain/src/data_availability_checker.rs
@@ -235,7 +235,7 @@ impl<T: BeaconChainTypes> DataAvailabilityChecker<T> {
             .put_kzg_verified_blobs(gossip_blob.block_root(), vec![gossip_blob.into_inner()])
     }
 
-    /// Check if we've cached other data columns for this block. If it completes a set and we also
+    /// Check if we've cached other data columns for this block. If it satisfies the custody requirement and we also
     /// have a block cached, return the `Availability` variant triggering block import.
     /// Otherwise cache the data column sidecar.
     ///
@@ -358,7 +358,7 @@ impl<T: BeaconChainTypes> DataAvailabilityChecker<T> {
                     }
                 }
                 (maybe_blob_list, maybe_data_column_list) => {
-                    let (verified_blobs, verified_data_column) =
+                    let (verified_blobs, verified_data_columns) =
                         if self.blobs_required_for_block(&block) {
                             (maybe_blob_list, maybe_data_column_list)
                         } else {
diff --git a/beacon_node/beacon_chain/src/data_availability_checker/availability_view.rs b/beacon_node/beacon_chain/src/data_availability_checker/availability_view.rs
index b0879ae60b4..54e2ae79ab2 100644
--- a/beacon_node/beacon_chain/src/data_availability_checker/availability_view.rs
+++ b/beacon_node/beacon_chain/src/data_availability_checker/availability_view.rs
@@ -136,7 +136,7 @@ pub trait AvailabilityView<E: EthSpec> {
     ///
     /// Data columns are only inserted if:
     /// 1. The data column entry at the index is empty and no block exists.
-    /// 2. The block exists and its commitment matches the blob's commitment.
+    /// 2. The block exists and its commitments matches the data column's commitments.
     fn merge_data_columns(
         &mut self,
         data_columns: FixedVector<Option<Self::DataColumnType>, E::DataColumnCount>,
diff --git a/beacon_node/beacon_chain/src/data_column_verification.rs b/beacon_node/beacon_chain/src/data_column_verification.rs
index 0aa2d5f3da5..2ea8fe1ae4f 100644
--- a/beacon_node/beacon_chain/src/data_column_verification.rs
+++ b/beacon_node/beacon_chain/src/data_column_verification.rs
@@ -15,7 +15,7 @@ pub enum GossipDataColumnError<T: EthSpec> {
     ///
     /// ## Peer scoring
     ///
-    /// We were unable to process this blob due to an internal error. It's
+    /// We were unable to process this data column due to an internal error. It's
     /// unclear if the data column is valid.
     BeaconChainError(BeaconChainError),
 
diff --git a/beacon_node/store/src/hot_cold_store.rs b/beacon_node/store/src/hot_cold_store.rs
index d5c99f90aeb..28eaeeb0b1c 100644
--- a/beacon_node/store/src/hot_cold_store.rs
+++ b/beacon_node/store/src/hot_cold_store.rs
@@ -1524,7 +1524,7 @@ impl<E: EthSpec, Hot: ItemStore<E>, Cold: ItemStore<E>> HotColdDB<E, Hot, Cold>
         }
     }
 
-    /// Fetch blobs for a given block from the store.
+    /// Fetch data_columns for a given block from the store.
     pub fn get_data_columns(
         &self,
         block_root: &Hash256,
diff --git a/consensus/types/src/data_column_sidecar.rs b/consensus/types/src/data_column_sidecar.rs
index 9cd350a90f5..a6d5b83083e 100644
--- a/consensus/types/src/data_column_sidecar.rs
+++ b/consensus/types/src/data_column_sidecar.rs
@@ -24,7 +24,7 @@ pub type ColumnIndex = u64;
 pub type Cell<T> = FixedVector<u8, <T as EthSpec>::FieldElementsPerCell>;
 pub type DataColumn<T> = VariableList<Cell<T>, <T as EthSpec>::MaxBlobsPerBlock>;
 
-/// Container of the data that identifies an individual blob.
+/// Container of the data that identifies an individual data column.
 #[derive(
     Serialize, Deserialize, Encode, Decode, TreeHash, Copy, Clone, Debug, PartialEq, Eq, Hash,
 )]