diff --git a/NAMESPACE b/NAMESPACE
index c221e86..965ab39 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -3,6 +3,7 @@
 export(all_interactions)
 export(all_uniprot_acs)
 export(all_uniprots)
+export(ambiguity)
 export(ancestors)
 export(annotated_network)
 export(annotation_categories)
@@ -315,6 +316,7 @@ importFrom(dplyr,bind_cols)
 importFrom(dplyr,bind_rows)
 importFrom(dplyr,c_across)
 importFrom(dplyr,case_when)
+importFrom(dplyr,cur_group_id)
 importFrom(dplyr,distinct)
 importFrom(dplyr,filter)
 importFrom(dplyr,first)
@@ -541,6 +543,7 @@ importFrom(tidyselect,any_of)
 importFrom(tidyselect,ends_with)
 importFrom(tidyselect,eval_select)
 importFrom(tidyselect,everything)
+importFrom(tidyselect,last_col)
 importFrom(tidyselect,starts_with)
 importFrom(tidyselect,vars_select_helpers)
 importFrom(tidyselect,where)
diff --git a/man/ambiguity.Rd b/man/ambiguity.Rd
new file mode 100644
index 0000000..884f253
--- /dev/null
+++ b/man/ambiguity.Rd
@@ -0,0 +1,53 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/id_mapping.R
+\name{ambiguity}
+\alias{ambiguity}
+\title{Inspect the ambiguity of a mapping}
+\usage{
+ambiguity(
+  d,
+  from_col,
+  to_col,
+  groups = NULL,
+  record_id = NULL,
+  quantify = TRUE,
+  qualify = TRUE,
+  expand = NULL
+)
+}
+\arguments{
+\item{d}{Data frame: a data frame with two columns to be inspected. It might
+contain arbitrary other columns. Existing grouping will be removed.}
+
+\item{groups}{Character vector of column names. Inspect ambiguity within
+these groups; by default, ambiguity is determined across all rows.}
+
+\item{record_id}{Character or symbol: a column identifying unique records;
+if not provided, each row will be considered a unique record.}
+
+\item{quantify}{Logical or character: inspect the mappings for each
+ID for ambiguity. If TRUE, for each translated column, two new columns
+will be created with numeric values, representing the ambiguity of the
+mapping on the "from" and "to" side of the translation, respectively.
+If a character value provided, it will be used as a column name suffix
+for the new columns.}
+
+\item{qualify}{Logical or character: inspect the mappings for each
+ID for ambiguity. If TRUE, for each translated column, a new column
+will be inculded with values `one-to-one`, `one-to-many`, `many-to-one`
+or `many-to-many`. If a character value provided, it will be used as a
+column name suffix for the new column.}
+
+\item{expand}{Logical: override the expansion of target columns, including
+`to_col`: by default, this function expands data into multiple rows if
+the `to_col` has already been expanded. Using this argument, the
+`to_col` and other target columns will be lists of vectors for `expand =
+FALSE`, and simple vectors for `expand = TRUE`.}
+}
+\value{
+A data frame (tibble) with ambiguity information added in new
+    columns, as described at the "quantify" and "qualify" arguments.
+}
+\description{
+Inspect the ambiguity of a mapping
+}
diff --git a/man/translate_ids.Rd b/man/translate_ids.Rd
index 20d5f64..954c559 100644
--- a/man/translate_ids.Rd
+++ b/man/translate_ids.Rd
@@ -20,8 +20,9 @@ translate_ids(
   complexes = NULL,
   complexes_one_to_many = NULL,
   track = FALSE,
-  inspect = FALSE,
-  inspect_grp = NULL,
+  quantify_ambiguity = FALSE,
+  qualify_ambiguity = FALSE,
+  ambiguity_groups = NULL,
   expand = TRUE
 )
 }
@@ -85,11 +86,20 @@ will be used.}
 \item{track}{Logical: Track the records (rows) in the input data frame by
 adding a column \code{record_id} with the original row numbers.}
 
-\item{inspect}{Logical: inspect the mappings for each ID for ambiguity.
-If TRUE, for each translated column, a new column will be inculded with
-values \code{one-to-one}, \code{one-to-many}, \code{many-to-one} or \code{many-to-many}.}
+\item{quantify_ambiguity}{Logical or character: inspect the mappings for each
+ID for ambiguity. If TRUE, for each translated column, two new columns
+will be created with numeric values, representing the ambiguity of the
+mapping on the "from" and "to" side of the translation, respectively.
+If a character value provided, it will be used as a column name suffix
+for the new columns.}
 
-\item{inspect_grp}{Character vector: additional column names to group by
+\item{qualify_ambiguity}{Logical or character: inspect the mappings for each
+ID for ambiguity. If TRUE, for each translated column, a new column
+will be inculded with values \code{one-to-one}, \code{one-to-many}, \code{many-to-one}
+or \code{many-to-many}. If a character value provided, it will be used as a
+column name suffix for the new column.}
+
+\item{ambiguity_groups}{Character vector: additional column names to group by
 during inspecting ambiguity. By default, the identifier columns (from
 and to) will be used to determine the ambiguity of mappings.}