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description: Common vocabulary regarding header bidding.
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# App terms definition

**Ad responses :** Number of auctions with at least one bid

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**Adcalls :** Number of times Adagio was involved in the monetization of a placement (= Adrequests)

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**Additional revenue :** Sum of difference between the highest and second highest bid among every auction

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**Attention package :** Group of impressions having the same average time-in-view prediction, in buckets of 5 seconds

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**Auctions :** Number of adcalls with at least one bid request sent to a DSP

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**Bid gross CPM :** Average of the highest gross bids received for an adcall

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**Bid net CPM :** Average of the highest net bids received for an adcall

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**Bid rate :** Percentage of adcalls for which a bidder returned a bid

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**Bidder :** Bidder name (or alias), as declared in Prebid.js ad-unit configuration

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**Bids :** Number of times a bidder submit a bid to buy an impression

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**CPH capacity :** Total duration of CPH compatible ad exposure

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**CPM :** Cost per 1000 ad impressions

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**Current timeout :** Timeout defined in the Prebid.js configuration

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**Gross CPM :** Average of the gross CPM of impressions (win)

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**Gross revenue :** Total gross revenue generated by SSP Adagio

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**Importance :** Percentage of Prebid.js revenue loss if the bidder is removed (= incremental revenue)

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**Impressions :** Number of times an ad was displayed

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**Measurables :** Number of measurable (viewability-wise) impressions

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**Net CPM :** Average of the net CPM of impressions (win)

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**Net revenue :** Gross revenue minus the Adagio commission

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**New timeout :** Timeout candidate for the Prebid.js configuration

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**Non-viewables :** Number of impressions measured non viewable according to IAB standards

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**Prediction passed :** Number of adcalls with at least one prediction successfully computed

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**Rule matched :** Number of times at least one rule has matched for an adcall

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**Time-in-view :** Average duration of time for which the ad was seen by the user per impression

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**Timeout :** Parameter in Prebid.js configuration defining the maximum time a bidder has to make a bid.If the bidder answers after the timeout, the bid will not be taken into account for the auction

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**Viewability package :** Group of impressions having the same predicted vRate, in buckets of 10%

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**Viewables :** Number of impressions measured viewable according to IAB standards

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**vRate :** Percentage of viewable impressions among measurable impressions

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**Win CPH :** Average cost for one hour of cumulated ad exposure

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**Win CPM :** Average revenue for 1000 impressions

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**Win net vCPM :** Average net CPM for 1000 viewable impressions

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**Win rate :** Percentage of impressions (or "wins" in Prebid analytics) among valid adcalls

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**Win time-in-view :** Average ad exposure of impressions won by Adagio

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**Win vRate :** Percentage of viewable impressions among measurable impressions of valid adcalls

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**Wins :** Number of impressions

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**Wins revenue :** Sum of net revenue for winning impressions as returned by a Prebid analytics

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